N V T VN:

CNG TY C PHN T VN U T THO NGUYN XANH

THUYT MINH D N

U T XY DNG CU XO VTTHEO HNH THC BOT

a im u t:- Th trn Ngan Da, huyn Hng Dn, tnh Bc Liu

- X Lng Tm, huyn Long M, tnh Hu GiangCH U T

CNG TY CP U T XY DNG

N V T VN

CNG TY CP T VN U T THO NGUYN XANH

Thng 12/2014

MC LC

1CHNG I: BO CO TM TT V D N

11.1. M t v d n v cc c quan chu trch nhim v d n

11.1.1. M t d n

11.1.2. Cc c quan chu trch nhim v d n

21.2. Lch trnh thc hin d n

21.3. a im thc hin d n

21.4. Ngun ti tr chnh cho d n

3CHNG II: BI CNH V CN C CA D N

32.1. Cn c xc nh s cn thit v tnh cp thit ca d n

32.1.1. Mi trng v m v chnh sch pht trin

42.1.2. Cc iu kin v c s ca d n

102.1.3. Th trng cung cu

102.1.4. Cc cn c thc hin d n

122.2. Mc tiu ca d n

122.3. S ph hp v cc ng gp vo chin lc quc gia, quy hoch tng th kinh t x hi ca c nc, ca vng, a phng

122.4. Quan h vi cc d n lin quan khc

132.5. Chng minh s cn thit ca d n

14CHNG III: QUY M A IM D N

143.1. Quy m d n

143.1.1. C s chn la quy m d n

143.1.2. Qui m

153.2. Khu vc t a im v a im c th

153.2.1. c im a hnh

153.2.2. c im a cht

153.2.3. c im kh hu, thy vn

163.2.4. Chn a im ph hp vi quy hoch xy dng, quy hoch s dng t

17CHNG IV: CC GII PHP V YU T K THUT CHO D N

174.1. Cc tiu chun thit k cu

174.2. Gii php thit k cu

234.2.1. Thi cng ng

284.2.2. Thi cng cu

294.2.3. Thi cng cc hng mc cng trnh

324.2.4. Mt s lu trong thi cng

324.3. Thit b thi cng ch yu

334.4. Yu cu vt liu

384.5. cht yu cu

39CHNG V: K HOCH GII PHNG MT BNG V TI NH C

395.1. Phm vi gii phng mt bng

395.2. Cc cn c thc hin gii phng mt bng

41CHNG VI: NH GI TC NG MI TRNG S B

416.1. Trong giai on xy dng c bn

416.1.1. Nhng tc ng n mi trng

416.1.2. Bin php khc phc

426.2. Giai on khi d n i vo hot ng

43CHNG VII: TNG MC U T

437.1. C s xc nh tng mc u t d n

447.2. Tng mc u t

477.3. K hoch vn u t tng ng vi tin

477.3.1. Tin u t

477.3.2. Tin s dng vn

487.3.3. Ngun vn thc hin d n

487.3.4. Phng n hon tr li v vn vay

50CHNG VIII: QUN L THC HIN V VN HNH D N

508.1. Cc d liu chnh v c quan thc hin d n

508.1.1. V th ch

508.1.2. Kinh nghim thc hin cc d n tng t

518.2. Qun l thc hin d n

518.2.1. T chc qun l thc hin d n

518.2.2. Gim st cng trnh

528.2.3. Qun l v nhn s cho d n

528.2.4. Vai tr, nhim v ca cc nh thu thi cng xy lp

538.2.5. Vai tr ca t vn

538.2.6. Vai tr ca cc t chc c lin quan thc hin d n

538.2.7. C ch phi hp

548.3. K hoch thc hin d n

548.3.1. Tin thc hin

548.3.2. Phng n t chc trin khai d n

548.4. Qun l ti chnh

548.4.1. Chun b k hoch ti chnh

548.4.2. Bo co hch ton ti chnh v cc tha thun v kim ton

558.5. Qun l u thu

558.5.1. Th tc u thu

558.5.2. Qun l v k hoch u thu s b

568.5.3. Qun l hp ng

568.6. Vn hnh d n: th ch v qun l

568.6.1. C quan chu trch nhim vn hnh d n

568.6.2. Quy trnh bn giao t n v thc hin sang vn hnh d n

568.6.3. Qun l v trch nhim vn hnh d n

58CHNG IX: KT QU V TC NG CA D N

589.1. C ch theo di, nh gi kt qu v tc ng ca d n

589.1.1. Tc ng v kinh t x hi

589.1.2. Cc iu kin cam kt chnh trong cc d n vn vay

599.1.3. C ch nh gi d n

599.1.4. C ch theo di v ch bo co

599.2. Hiu sut u t: hiu qu/li ch kinh t v ti chnh

599.2.1. Cc gi nh kinh t v c s tnh ton

619.2.2. Hiu qu kinh t ti chnh

639.2.3. Bo co thu nhp d tr

689.2.4. Bo co ngn lu

759.2.5. Ngun tr n

769.3. nh gi tc ng x hi

779.4. Cc ri ro chnh

789.5. Cc vn c th gy tranh ci

789.6. Tnh bn vng ca d n

79CHNG X: KT LUN V KIN NGH

7910.1. Kt lun

7910.2. Kin ngh

CHNG I: BO CO TM TT V D N

1.1. M t v d n v cc c quan chu trch nhim v d n1.1.1. M t d n Tn d n: u t xy dng cu Xo Vt theo hnh thc BOT Mc tiu ca d nTo s lu thng thng sut tuyn giao thng lin huyn, tng bc hon thin h thng giao thng, phc v tt hn cho nhu cu giao thng trong khu vc v gp phn pht trin kinh t - vn ho - x hi ca a phng. Cc thnh phn d n

D n u t xy dng cu Xo Vt gm cc thnh phn sau:

- Thnh phn 1: n b, gii phng mt bng v ti nh c.- Thnh phn 2: Lp d n kh thi

- Thnh phn 3: Lp bo co nh gi tc ng mi trng

- Thnh phn 4: Lp thit k c s- chi tit- Thnh phn 5: Qun l d n Hnh thc u t: u t xy dng mi theo hnh thc Hp ng Xy dng - Kinh doanh - Chuyn giao (Hp ng BOT).1.1.2. Cc c quan chu trch nhim v d n Ch u t: Tn doanh nghip: a ch: M s thu:

Ngy cp:

Ni cp:

Ngnh ngh kinh doanh: u t xy dng cu ng b theo hnh thc BOT & BT, kinh doanh thng mi v.v... in thoi: 07803.591995

Fax: 07803.591996 n v t vn: Tn doanh nghip: Cng ty C phn T vn u t Tho Nguyn Xanh a ch: S 158, Nguyn Vn Th, P.a Kao, Qun 1, Tp.HCM

in thoi: 08.39118552

Fax: 08.3991185791.2. Lch trnh thc hin d nK hoch d kin:

+ Kho st thit k:

thng 6/2013 => 12/2013

+ Thm nh, ph duyt:

thng 1/2014 => 10/2014+ m phn k HBOT:

thng 11/2014 => 4/2015+ T chc thi cng xy lp hon thnh:thng 5/2015 => 12/2015

+ Bt u khai thc s dng:

thng 01/2016

1.3. a im thc hin d nD n cu Xo Vt bt qua sng Vm Ngan Da (sng Ci Tru) ni linth trn Ngan Da, huyn Hng Dn, tnh Bc Liu vi x Lng Tm, huyn Long M, tnh Hu Giang.V tr cu d kin t ngay bn ph hin hu v hin c ng u ni vo th trn Ngan Da v x Lng Tm. B rng lng sng ti v tr ny khong 120.9 m, su so vi mc nc cao nht l 4m.

Hnh: Khu vc thc hin d n1.4. Ngun ti tr chnh cho d nTi tr chnh cho d n c huy ng t: Qu u t Pht trin tnh Bc Liu v vn i ng ca Cng ty C phn u t Xy dng BOT & BT Min Nam.Vi mc tng vn u t (bao gm li vay) l 52,416,213,000 ng, trong :

Vn i ng: 28,016,213,000 ng chim 53%. Vn vay Qu u t Pht trin tnh Bc Liu: 24,400,000,000 ng chim 47%.CHNG II: BI CNH V CN C CA D N

2.1. Cn c xc nh s cn thit v tnh cp thit ca d n

2.1.1. Mi trng v m v chnh sch pht trin Nhng nm qua, hu ht cc nc trn th gii phi chu tc ng ca cuc khng hong kinh t v ti chnh, nhng nh chnh sch kinh t nng ng, Vit Nam nhanh chng phc hi. S tng trng kinh t trong nhng nm qua vn mt mc tng i cao v n nh t 5 ti 6%. Nm 2014, tt c cc ngnh ngh, lnh vc nc ta pht trin theo chiu hng tch cc.

+ Ch s gi dng tiu (CPI) thng 11 gim 0,27% so vi thng 10; tng 2,18% so vi u nm v 2,7% so vi cng k. Ch s lm pht c nm 2014 c d bo mc rt thp, xp x 2%.

+ Ch s sn xut cng nghip tip tc duy tr tng trng mnh. Ch s PMI (HSBC) thng 11 t 52,1 im, tip tc m rng trong 15 thng lin tip. tng trng ny c k vng s tip ni trong thng 12, nh du s tng tc y ha hn trong qu 4 ni ring v c nm 2014 ni chung ca kinh t trong nc.

+ Tnh hnh FDI chuyn bin mnh m tch cc trong thng 11 qua. D bo, FDI ng k c nm 2014 t 18 18,5 t USD, FDI gii ngn t 12 12,5 t USD.

+ K vng lm pht ang mc rt thp l c s vng chc cho vic gim li sut trong cc thng cui nm 2014. Tng trng tn dng 11 thng tng 10,22% so vi cui nm 2013. Vi tc hin ti, nhiu kh nng Ngn hng Nh nc s t c mc tiu c nm tng trng t khong 12-14%.Ring cc lnh vc vn ho, x hi t thnh tu quan trng trn nhiu mt, nht l xa i, gim ngho. i sng vt cht v tinh thn ca nhn dn c ci thin r rt; dn ch trong x hi tip tc c m rng. Chnh tr - x hi n nh; quc phng, an ninh c gi vng. Cng tc i ngoi, hi nhp quc t c trin khai su rng v hiu qu, gp phn to mi trng ha bnh, n nh v tng thm ngun lc cho pht trin t nc.Tuy nhin, nhng thnh tu t c cha tng xng vi tim nng. Kinh t pht trin cha bn vng. Cht lng tng trng, nng sut, hiu qu, sc cnh tranh ca nn kinh t thp, cc cn i kinh t v m cha vng chc, cung ng in cha p ng yu cu. Cng tc quy hoch, k hoch v vic huy ng, s dng cc ngun lc cn hn ch, km hiu qu, u t cn dn tri; qun l nh nc i vi doanh nghip ni chung cn nhiu yu km, vic thc hin chc nng ch s hu i vi doanh nghip nh nc cn bt cp. Tng trng kinh t vn da nhiu vo cc yu t pht trin theo chiu rng, chm chuyn sang pht trin theo chiu su. Cc lnh vc vn ho, x hi c mt s mt yu km chm c khc phc, nht l v gio dc, o to v y t; o c, li sng trong mt b phn x hi xung cp. Mi trng nhiu ni ang b nhim nng; ti nguyn, t ai cha c qun l tt, khai thc v s dng km hiu qu, chnh sch t ai c mt cha ph hp. Th ch kinh t th trng, cht lng ngun nhn lc, kt cu h tng vn l nhng im nghn cn tr s pht trin. Nn tng Vit Nam tr thnh nc cng nghip theo hng hin i cha c hnh thnh y . Vn ang tim n nhng yu t gy mt n nh chnh tr - x hi v e da ch quyn quc gia.Trc tnh hnh kinh t-x hi nh hin nay, Chnh ph nh hng: Phn u n nm 2020 nc ta c bn tr thnh nc cng nghip theo hng hin i; chnh tr - x hi n nh, dn ch, k cng, ng thun; i sng vt cht v tinh thn ca nhn dn c nng ln r rt; c lp, ch quyn, thng nht v ton vn lnh th c gi vng; v th ca Vit Nam trn trng quc t tip tc c nng ln; to tin vng chc pht trin cao hn trong giai on sau.2.1.2. Cc iu kin v c s ca d n

Ngnh c d n

Chnh ph Vit Nam lun xc nh: giao thng vn ti ng b l mt b phn quan trng trong kt cu h tng kinh t x hi; v vy cn u tin u t pht trin, to tin , lm ng lc pht trin kinh t - x hi, p ng yu cu cng nghip ha, hin i ha t nc, tin trnh hi nhp kinh t khu vc v quc t, gp phn m bo quc phng an ninh.

Trong c cu giao thng ng b, h thng giao thng nng thn nc ta hin ti nhn chung ngy cng tt hn. Theo tnh ton, ca B Giao thng Vn ti, h thng giao thng nng thn hin nay phc v cho hn 75% dn s trong c nc. H thng giao thng nng thn khng ch l nhng tuyn ng huyn ni cc trung tm huyn vi x hoc ni cc trung tm x vi nhau; hoc nhng tuyn ng x ni cc trung tm x vi cc thn, xm; m cn l nhng tuyn ng lin thn, lin xm dng ni cc thn, cc xm vi nhau, k c cc ng mng, ng b vng, b tha,... ni cc thn, xm dn c vi ng rung, nng ry phc v i sng dn sinh ti cc vng nng thn m xe my, xe th s c th i li c. H thng ng huyn v ng x hin nay xy dng c hng trm nghn km gp phn quan trng trong pht trin kinh t - x hi v xo i gim ngho. Ch trong vi nm qua, hng nghn km cu v hng chc nghn km ng giao thng nng thn c xy dng mi hoc ci to, nng cp. Hng trm cy cu kh khu vc ng bng sng Cu Long c thay th bng cu giao thng nng thn. Ngun vn pht trin giao thng nng thn khng ngng gia tng. Trong , ngun vn c gc t ngn sch trung ng v a phng lng ghp vi chng trnh 135, chng trnh 137, chng trnh 186... chim 80%, cn 20% vn c huy ng t ngi dn. V c bn, vic u t pht trin giao thng nng thn gp phn thc hin Chin lc tng trng ton din v xa i gim ngho v cung cp h tng cho ngi ngho. Vic gim t l i ngho ca nc ta t 14,2% (nm 2010) xung cn 11,76% (nm 2011) v 9,6% (nm 2012), c thc hin nm 2013 l 7,6-7,8% cho thy vic u t mi nm tuy mi t xp x 1% GDP cho pht trin giao thng nng thn nhng cng gp phn mt cch trc tip v gin tip gip cho vic xo i gim ngho.

Thc hin ch trng ca ng v Nh nc, to cho pht trin kinh t - x hi khu vc ng bng sng Cu Long, Chnh ph c quy hoch pht trin tng th c khu vc trong c cc d n v h tng giao thng vn ti. Theo Chnh ph ch o: huy ng mi ngun lc pht trin giao thng nng thn. Chnh ph nh hng n nm 2020, 100% ng huyn, ng x i li quanh nm; t l mt ng cng ng huyn t 100% ng x t 70%; tng bc kin c ha cu cng, xy dng cc cu vt sng sui phc v dn sinh, xa b ton b cu kh khu vc B sng Cu Long. Hin trng vng thc hin d nD n u t xy dng cu Xo Vt c thc hin ti th trn Ngan Da, huyn Hng Dn, tnh Bc Liu vi x Lng Tm, huyn Long M, tnh Hu Giang. Do vy trc khi thc hin d n cn nghin cu hin trng kinh t - x hi- t nhin ca 2 a phng ny:A- Tnh Bc Liu1/ iu kin t nhinTnh Bc Liu nm trn bn o C Mau, thucng bng sng Cu Long, min t cc nam caVit Nam, vi din tch t t nhin l 2.570 km2, chim gn 0.8% din tch c nc v ng hng th 7 trong khu vcng bng sng Cu Long. Pha bc gip vi Hu Giang, pha ng v ng bc gip viSc Trng, pha ty nam gip viC Mau, pha ty bc gip vi Kin Giang, pha ng nam gip viBin ngvi ng b bin di 56 km. Din tch t nhin 2.521 km2. Bc Liu ca hnhkh bng phng, khng c i, ni chnh v l cng khng c cc chn ng a cht ln. a hnh ch yn lng bng, sng rch vknh ochng cht. Bc Liu nm trong vngkh hu nhit i gi ma,thi titchia thnh hai ma r rt lma mavma kh.Ma khhay cn gi l ma nng thng bt u tthng 10,thng 11nm trc nthng 4,thng 5nm sau.Ma mabt u tthng 4,thng 5nthng 10,thng 11.Nhit trung bnh nm 28,50C, nhit thp nht trong nm l 210C, nhit cao nht trong nm l 360C. Bc Liu thuc h sinh thi rng ngp mn cc rng ch yn nh rng trm,ch l, gi, cc, lm v,... Bn di l thm thc vt gm c v cc loi dy leo. Rng Bc Liu c 104 loi thc vt, 10 loi th nh, 8 loi b st,...

Bc Liu c b bin di 56km. Bin Bc Liu c nhiu loitm,c,c,s huyt,... Hng nm, sn lng khai thc t gn 100 nghn tn c, tm. Trong , sn lng tm gn 10 nghn tn. H thng sng ngi ti Bc Liu chia lm hai nhm. Nhm 1 chy ra hi lu pha nam, nhm 2 chy rasng Ba Thc. B bin thp v phng rt thch hp pht trin ngh lm mui, trng trt hoc nui tm, c. Hng nm, s bi ln bin Bc Liu ngy mt tng. y l iu kin l tng cho Bc Liu pht trin thm qu t, ng thi l yu t quan trng a kinh t bin ca Bc Liu pht trin

2/ Kinh t - x hiTrong giai on 2011 2013, nn kinh t ca Bc Liu duy tr tng trng mc kh cao, bnh qun t 12,2%; tng GDP tng t 8.476 t ng nm 2010 ln 11.971 t ng nm 2013. C cu kinh t chuyn dch theo hng tng dn t trng cng nghip dch v; cc ngnh, lnh vc u c s pht trin. Ring tnh hnh kinh t - x hi ca tnh 9 thng nm 2014 tip tc c nhiu chuyn bin tch cc. Tng sn phm trong tnh t trn 9. 000 t ng, sn xut nng nghip, thy sn tip tc pht trin. Gi tr sn xut cng nghip, thng mi, dch v trn a bn tnh tng so vi cng k, p ng kh tt nhu cu phc v sn xut v tiu dng ca nhn dn.3/ Mng li giao thng

- Mng li giao thng trn a bn tnh cn nhiu yu km, hin ti v ng b ch c tuyn Quc l 1A l trc giao thng xng sng cho pht trin giao thng.

- Bn cnh mt s ng tnh cng v ang c u t xy dng, hin ang khai thc s dng nh: tuyn H Phng - Gnh Ho kt ni t cng bin Gnh Ho v quc l 1A; tuyn Nam sng Hu chy dc ven bin t Sc Trng qua Bc Liu; tuyn Gnh Ho - Gi Rai - Vnh Thun ni vo ng H Ch Minh... Tuy nhin cc tuyn ny ch yu vi quy m nh (cp V-ng bng tr xung) nn cha p ng nhu cu vn ti trc mt cng nh lu di.

- So vi c nc, h thng GTVT tnh Bc Liu c nhng c im hn ch:

+ Do a hnh c nhiu sng ngi, b chia ct, iu kin a cht yu, kt cu mt ng d b ph hoi, nht l trong ma ma. Trong khi , vo ma kh, giao thng ng thy nhiu khi b tc nghn do nc cn, yu cu thng thng ch yu bng ng b. V vy kinh ph u t cho 1km ng cao do phi chn kt cu mt tt v gia c taluy cng nh khi lng o p nn ng ln.

+ Dn c sng khng tp trung m ri rc, do vy cc tuyn ng t trung tm huyn n cc x v t cm x n cc x cng nh t x xung cc thn, bn thng xa nhng li phc v c s t ngi dn, i sng nhn dn cn nhiu kh khn, nn vic huy ng sc dn lm ng GTNT gp kh khn.

+ H thng giao thng tnh Bc Liu c quan tm xy dng nhng vn cn mt phn l ng t, chim 44,86% v ng cp phi chim 28,36% cha c iu kin u t nng cp, ma ma i li nhng tuyn ng ny ht sc kh khn, thm ch b ch tc, ly li. Cc tuyn ng tnh ch yu t tiu chun cp V, VI, cc tuyn ng huyn ch yu t cp VI tr xung. Hin ti, vn u t cho h thng giao thng so vi nhu cu l rt t, nht l cng tc bo dng, duy tu thng xuyn.

- Giao thng ch yu trn a bn l giao thng ng thy, giao thng ng b ch yu bm theo cc nhnh knh, rch. Tuy vy khi lng cu cng cn u t v sa cha sau ma ma l cn rt ln v i hi ln v kinh ph u t.

B- Tnh Hu Giang

1/ iu kin t nhinHu Giangl mt tnh ng bng sng Cu Long, c thnh lp vo nm 2004do tch ra ttnh Cn Thc.Pha Ty giptnh Kin Giang, pha Bc gipthnh ph Cn Th vtnh Vnh Long, pha nam gip tnhBc Liu, pha ng giptnh Sc Trng.Hu Giang l tnh nm phn cuing bng chu th sng Cu Long, a hnh thp, cao trung bnh di 2 mt so vi mcnc bin. a hnh thp dn t Bc xung Nam v t ng sang Ty. Khu vc vensng Hucao nht, trung bnh khong 1 - 1,5 mt, cao thp dn v pha Ty. B mt a hnh b chia ct mnh bi h thng knh rch nhn to.Tnh Hu Giang nm trong vng ai ni ch tuyn Bc bn cu, gnxch o, ckh hu nhit i gi ma, chia thnh hai ma r rt.Ma mac gi Ty Nam tthng 5nthng 11,ma khc gi ng Bc tthng 12nthng 4hng nm. Nhit trung bnh l 270C khng c s trn lch qu ln qua cc nm. Thng c nhit cao nht (350C) l thng 4 v thp nht vo thng 12 (20,30C). Ma ma t thng 5 n thng 11 hng nm, chim t 92 - 97% lng ma c nm. Lng ma Hu Giang thuc loi trung bnh, khong 1800mm/nm, lng ma cao nht vo khong thng 9 (250,1mm). m tng i trung bnh trong nm phn ho theo ma mt cch r rt, chnh lch m trung bnh gia thng m nht v thng t m nht khong 11%. m trung bnh thp nht vo khong thng 3 v 4 (77%) v gi tr m trung bnh trong nm l 82%. Tnh Hu Giang c mt h thng sng ngi knh rch chng cht vi tng chiu di khong 2.300km. Mt sng rch kh ln 1,5km/km, vng vensng Huthuc huynChu Thnhln n 2km/km. Hu Giang nm trong vng trng ca khu vcng bng Sng Cu Long. Cu to ca vng c th chia thnh hai vng cu trc r rt l Tng cu trc di v Tng cu trc bn, trong Tng cu trc di gm Nn c cu to bng Granitv cc kt tinh khc, bn trn l cng cu to bng trm tch bin hoc lc a v cc loi mcma xm nhp hoc phun tro.2/ Kinh t - x hi

Nm 2014 tnh hnh kinh t - x hi ca tnh tip tc pht trin tng i kh. Tc tng trng t 9,62%, tuy thp hn cng k nhng gi tr gia tng theo gi thc t gn t 50% k hoch, gp phn gia tng gi tr bnh qun u ngi t 90% so vi k hoch; c cu kinh t c s chuyn dch nhanh v vt k hoch. Ngoi ra, cc lnh vc v gi tr sn xut nng nghip, tng mc bn l hng ha v doanh thu dch v, xut nhp khu, xy dng nng thn mi u tng cng k; cng tc an sinh x hi c m bo; cc lnh vc vn ha, gio dc, y t c quan tm ch o tt; tnh hnh an ninh - chnh tr, trt t an ton x hi c gi vng v n nh3/ Mng li giao thngHu Giang c h thng giao thng b, thy chng cht, vi 21 tuyn quc l, tnh l di hn 500km v hng trm tuyn ng giao thng nng thn. Ring giao thng thy c h lu ln thuc qun l ca Trung ng, a phng gn 50 tuyn, di khong 700km. Thi gian qua, tnh u t hng chc nghn t ng pht trin h thng c s h tng giao thng, trong c nhiu d n xy dng ng, k ven sng t 3.500-7.000 t ng/d n. Hu Giang l mt trong nhng tnh, thnh khu vc ng bng sng Cu Long c h thng giao thng nng thn kh hon chnh, c u t theo phng chm nh nc v nhn dn cng lm. Nm nm gn y, nhn dn trong tnh ng gp gn 1.000 t ng cng nh nc xy dng 4.000km ng nha, btng giao thng nng thn. Tuy nhin, h thng giao thng ca tnh vn cha p ng nhu cu i li, cn hn ch trong vic vn chuyn giao thng hng ha. Khi lng cu cng cn u t v sa cha sau ma ma l cn rt ln v i hi ln v kinh ph u t.

Quy hoch, k hoch pht trinA- Tnh Bc LiuTrong Quyt nh s 221/Q-TTg ngy 22/2/2012 v/v ph duyt Quy hoch tng th pht trin kinh t - x hi tnh Bc Liu n nm 2020, Chnh ph khng nh mc tiu: Phn u xy dng Bc Liu c bn tr thnh mt tnh c nn nng nghip cng ngh cao pht trin bn vng gn vi pht trin cng nghip v dch v, c h thng kt cu h tng ng b, hin i; i sng vt cht tinh thn ca nhn dn khng ngng c nng cao, c nn vn ha tin tin m bn sc dn tc; c nn quc phng an ninh vng mnh, trt t an ton x hi c m bo; quyt tm a Bc Liu sm tr thnh mt trong nhng tnh pht trin kh trong vng v c nc.Trong :1/ V kinh t:

- Tc tng trng kinh t bnh qun t 13,5 14%/nm giai on 2011 2015 v t 12 12,5%/nm giai on 2016 2020. GDP bnh qun u ngi t khong 38,8 triu ng vo nm 2015 v khong 82,1 triu ng vo nm 2020.

- Chuyn dch c cu kinh t theo hng tng dn t trng cc ngnh phi nng nghip; n nm 2015 t trng cc ngnh nng lm thy sn t 36,4%, cc ngnh phi nng nghip t 63,6%; n nm 2020 tng ng l 31% v 69%.

- Phn u kim ngch xut khu t trn 380 triu USD vo nm 2015 v t khong 900 1.000 triu USD vo nm 2020; tng mc lu chuyn hng ha v dch v tng trng bnh qun t 22%/nm; thu ngn sch theo gi hin hnh tng bnh qun khong 16 16,5%/nm giai on 2011 2015 v 19,5%/nm thi k 2016 2020; nng dn t l thu ngn sch so GDP ln 8,1% nm 2015 v 8,2% nm 2020.

2/ V x hi:

- T l tng dn s t nhin giai on 2011 2015 t 1,12%/nm v giai on 2016 2020 khong 1,0% - 0,9%/nm; gim t l h ngho bnh qun mi nm khong 1,5% - 2%.

- Phn u n nm 2015, mi nm to vic lm mi cho khong 13.500 14.000 lao ng; t l lao ng qua o to ngh t 50%; t l tr em di 5 tui suy dinh dng gim xung 15%; c 25 ging bnh/vn dn; 20% s x t tiu ch v xy dng nng thn mi; t l h c s dng in t 98%.

- Phn u n nm 2020, t l tht nghip thnh th di 4%, qu thi gian lao ng c s dng nng thn 90%; ph cp gio dc trung hc ph thng ng tui quy nh t mc 90%; t l lao ng qua o to ngh t khong 65 70%; t l tr em di 5 tui suy dinh dng gim cn 10%; t 7 bc s v 1 dc s i hc/vn dn; c 32 ging bnh/vn dn; 95% tr em c tim chng 8 10 loi vacxin; 95% s khm p c cng nhn t chun vn ha; 50% s x t tiu ch v xy dng nng thn mi; t l h c s dng in t 100%.

3/ Giao thng- Bc Liu co mang li giao thng vn tai hp ly, lin hoan, thng sut bao gm h thng ng quc l, h thng ng tinh l, ng thi, ng giao thng nng thn:

- H thng ng quc l: Cac tuyn Quc l 1A, Qung l Phng Hip at ti thiu cp III, kt cu mt b tng nha at 100%.

- H thng ng tinh at ti thiu cp IV-ng bng, kt cu mt b tng nha, hoc BTXM ty l at 100%.

- H thng ng giao thng thi: Quy m phu hp vi cp thi, ty l b tng nha, BTXM at 100%.

- H thng ng giao thng nng thn: Cac tuyn ng huyn at ti thiu cp V ty l trai nha, BTXM cp phi at 100%, ng lin xa, truc xa chinh ti thiu cp VI, h thng ng thn xom a vao cp A, B. Kt cu mt bng nha, cp phi at 50% vao nm 2010 va trn 80% vao nm 2020.

- Theo quy hoach phat trin GTVT tinh Bac Liu n nm 2020, tm nhin n nm 2025 a c UBND tinh ph duyt thi nhu cu hin nay va sp ti cn phai u t, m rng, nng cp: gm 13 tuyn (tng chiu dai la 336,9km) ng tinh; 57 tuyn (tng chiu dai la 912,8km) ng huyn; 1.990km ng, 887 cu dai 21.722m ng GTNT theo tiu chi nng thn mi.B- Tnh Hu Giang

Trong Quyt nh 1496/Q-TTg ngy 27/8/2013 ca Th tng Chnh ph v/v: Ph duyt iu chnh, b sung quy hoch tng th pht trin kinh t - x hi hi tnh Hu Giang n nm 2020; Chnh ph khng nh mc tiu: pht trin kinh t-x hi tnh Hu Giang theo hng hin i, bn vng, gii quyt xa i gim ngho, to s chuyn bin cn bn v cht lng tng trng v sc cnh tranh ca nn kinh t, tng bc xy dng kt cu h tng ng b, hin i; khng ngng nng cao i sng vt cht v tinh thn ca nhn dn. Tp trung chuyn dch c cu kinh t, ly nng nghip lm nn tng cho pht trin cng nghip v dch v; la chn cc mi t ph tp trung vo th mnh v khc phc cc im yu;Trong :1/ V kinh t

Tc tng trng kinh t bnh qun t 14,7%/nm giai on 2011 2015 v t 16,3%/nm giai on 2016 2020. GDP bnh qun u ngi t khong 36,8 triu ng vo nm 2015 v khong 72 triu ng vo nm 2020.

- C cu kinh t nm 2015: nng lm thy sn t 22.7%, cng nghip - xy dng 35%, dch v 42.3%- Phn u kim ngch xut khu bnh qun hng nm giai on 2011-2015 l 27.2%, giai on 2016 2020 l 19.8%; thu ngn sch theo gi hin hnh tng bnh qun khong 16,5%/nm giai on 2011 2015 v 17,5%/nm thi k 2016 2020.2/ V x hi- n nm 2015 quy m dn s khong 810 ngn ngi v vo nm 2020 khong 871 ngn ngi; t l dn s thnh th khong 31.7% n nm 2015 v 44.2% vo nm 2020;

- Gim t l h ngho (theo chun hin nay) cn khong 15% vo nm 2015 v n nm 2020 cn di 10%;- Phn u n nm 2015 c khong 50% s trng hc cc cp ph thng t chun quc gia, n nm 2020 t 80%;

- T l x, phng, th trn t tiu chun vn ha l 55-60% vo nm 2015 v 65-70% vo nm 2020; t l x nng thn mi t 20% vo nm 2015 v 50% vo nm 2020;3/ V giao thng

Phn u n nm 2020 hon thin, nng cp h thng giao thng ng b, tng bc hin i, lin hon, thng sut, quy m ph hp vi tng vng, tng a phng;

Phi hp vi B GTVT, tng bc nng cp, m mi, hon thin h thng giao thng quc gia i qua a bn tnh Hu Giang c cc cp thm quyn ph duyt. Ch ng xy dng k hoch v b tr hp l ngun lc trong tng giai on theo quy hoch xy dng v hon thin h thng giao thng do tnh Hu Giang qun l (bao gm ng b, ng thy, bn xa, bn tu, cng sng). Pht trin nng cp mng li ng giao thng nng thn to iu kin phn b li dn c, pht trin kinh t- x hi v iu tit mt giao thng.2.1.3. Th trng cung cu

Hin ti, tuyn ng ni t th trn Ngan Da, huyn Hng Dn, tnh Bc Liu v x Lng Tm, huyn Long M, tnh Hu Giang c u t ng nha cp phi, chiu rng mt ng t 4,5m ti trng tng ng cp VI ng bng. y l tuyn ng lin huyn gia hai tnh tng i quan trng. Tuy nhin, hin nay vic lu thng cha c thng sut do mi ngy, hng ngn lt phng tin lu thng trn tuyn ng ny phi vt v ly ph qua sng Vm Ngan Da gy cn tr giao thng v nh hng ln n i sng sinh hot ca ngi dn hai huyn. Vi hn 100 ngn ngi huyn Hng Dn v khong 170 ngn ngi sinh sng huyn Long M cng nh s dn s gia tng trong nhng nm ti th vic xy dng mt cy cu thay th bn ph l cn thit thun li v m bo an ton trong vic lu thng, vn chuyn hng ho gp phn pht trin kinh t x hi ca a phng. 2.1.4. Cc cn c thc hin d n Lut Xy dng s 16/2003/QH11 ngy 26/11/2003 ca Quc hi;

Lut u t s 59/2005/QH11 ngy 29/11/2005 ca Quc hi;

Lut Sa i, b sung mt s iu ca cc lut lin quan n u t xy dng c bn s 38/2009/QH12 ngy 19/06/2009 ca Quc hi;

Ngh nh s 12/2007/N-CP ngy 12/02/2007 ca Chnh ph v qun l d n u t xy dng cng trnh;

Ngh nh s 83/2009/N-CP ngy 15/10/2009 ca Chnh ph v sa i, b sung mt s iu Ngh nh s 12/2009/N-CP ngy 12/02/2009 ca Chnh ph v qun l d n u t xy dng cng trnh;

Ngh nh s 24/2011/N-CP ngy 05/4/2011 v Ngh nh s 108/2009/N-CP ngy 27/11/2009 ca Chnh ph v u t theo hnh thc Hp ng Xy dng - Kinh doanh - Chuyn giao, Hp ng Xy dng - Chuyn giao - Kinh doanh, Hp ng Xy dng - Chuyn giao;

Thng t s 03/2011/TT-BKHT ngy 27/01/2011 ca B K hoch v u t hng dn thc hin mt s quy nh ca Ngh nh s 108/2009/N-CP ngy 27/11/2009 ca Chnh ph v u t theo hnh thc Hp ng BOT, Hp ng BTO, Hp ng BT;

Ngh nh s 209/2004/N-CP ngy 16/12/2004 ca Chnh ph v qun l cht lng cng trnh xy dng;

Ngh nh s 49/2008/N-CP ngy 14/08/2008 v sa i, b sung mt s iu ca Ngh nh s 209/2004/N-CP ngy 16/12/2004 ca Chnh ph v qun l cht lng cng trnh xy dng;

Ngh nh s 112/2009/N-CP ngy 14/12/2009 ca Chnh ph v qun l chi ph u t xy dng cng trnh;

Cc thng t hng dn cc Ngh nh trn; Quyt nh s 356/Q-TTg ngy 25/2/2013 v/v iu chnh Quy hoch pht trin giao thng vn ti ng b Vit Nam n nm 2020 v nh hng n nm 2030;

Quyt nh s 221/Q-TTg ngy 22/2/2012 ca Th tng Chnh ph v/v: Ph duyt Quy hoch tng th pht trin kinh t - x hi tnh Bc Liu n nm 2020; Quyt nh s 1496/Q-TTg ngy 27/8/2013 ca Th tng Chnh ph v/v: Ph duyt iu chnh, b sung quy hoch tng th pht trin kinh t - x hi hi tnh Hu Giang n nm 2020; Cng vn s 1795/UBND-KTTH ngy 20/11/2012 ca UBND tnh Hu Giang v vic thun ch trng u t d n cu Xo Vt theo hnh thc hp ng BOT;

Cng vn s 95/KHT-KT ngy 04/02/2012 ca S K hoch v u t tnh Bc Liu v vic u t xy dng cu Xo Vt trn phm vi a bn hai tnh Hu Giang Bc Liu;

Cng vn s 277/UBND/KTTH ngy 23/02/2013 ca UBND tnh Hu Giang v vic thng nht n v lm u mi thc hin d n cu Xo Vt; T trnh ca ch u t v vic gim quy m d n v km theo cc bin bn lm vic ca cc ban ngnh hai tnh Bc Liu v Hu Giang; Cng vn s 3675/UBND/KT ngy 13/09/2013 ca UBND tnh Bc Liu v vic tha thun quy m u t xy dng cu Xo Vt ni huyn Hng Dn v huyn Long M; Cng vn s 1540/UBND/KTTH ngy 02/10/2013 ca UBND tnh Hu Giang v vic thng nht iu chnh quy m u t xy dng cu Xo Vt; Cng vn s 4674/UBND-KT ngy 13/11/2013 ca UBND tnh Bc Liu v vic chp thun giao nh u t t chc lp bo co nghin cu kh thi d n cu Xo Vt theo hnh thc BOT; Quyt nh s 1779/Q-UBND ngy 17/10/2014 ca UBND tnh Bc Liu v/v ph duyt d n u t xy dng cu Xo Vt bng hnh thc BOT;2.2. Mc tiu ca d n- Nng cp v hon thin ng nha cp phi tng ng cp VI ng bng, ni t th trn Ngan Da, huyn Hng Dn, tnh Bc Liu n x Lng Tm, huyn Long M, tnh Hu Giang.

- Phc v nhu cu giao thng, sinh hot ca nhn dn huyn Hng Dn v huyn Long M .

- Gim p lc lu lng giao thng, to iu kin thc y giao thng gia tnh Bc Liu v tnh Hu Giang vi cc tnh thnh trong khu vc.2.3. S ph hp v cc ng gp vo chin lc quc gia, quy hoch tng th kinh t x hi ca c nc, ca vng, a phng D n u t xy dng cu Xo Vt ph hp vi quy hoch pht trin kinh t x hi ca 2 tnh Hu Giang v Bc Liu; ng thi ph hp vi chin lc pht trin ca ngnh giao thng vn ti nc ta ni chung v ca hai tnh ny ni ring. S ph hp c th hin ti: Quyt nh s 356/Q-TTg ngy 25/2/2013 v/v iu chnh Quy hoch pht trin giao thng vn ti ng b Vit Nam n nm 2020 v nh hng n nm 2030;

Quyt nh s 221/Q-TTg ngy 22/2/2012 ca Th tng Chnh ph v/v: Ph duyt Quy hoch tng th pht trin kinh t - x hi tnh Bc Liu n nm 2020; Quyt nh s 1496/Q-TTg ngy 27/8/2013 ca Th tng Chnh ph v/v: Ph duyt iu chnh, b sung quy hoch tng th pht trin kinh t - x hi hi tnh Hu Giang n nm 2020;Bn cnh , trong nhng nm qua bng s n lc ca tnh, tp trung cc ngun vn t ngn sch tnh v tranh th s h tr t Ngn sch trung ng, cc ngun vn ODA, NGO, FDI v cc ngun vn khc trn a bn tnh u t nhiu lnh vc nh kt cu h tng giao thng, dn dng, h tng k thut v thu c nhng kt qu kh quan.

Lnh o Trung ng v a phng v ang n lc to iu kin cho cc Nh u t thc hin chnh sch x hi ha trong lnh vc pht trin c s h tng nht l lnh vc giao thng vn ti. Tip tc thc hin c hiu qu cc Chnh sch h tr ca Chnh ph, kp thi pht hin v tho g nhng kh khn vng mc ca cc doanh nghip trong qu trnh tip cn ngun vn u t c h tr li sut. y mnh u t xy dng c bn bng ngun vn ngn sch v ngun vn doanh nghip.

Hn na, nh u t, ch doanh nghip d n cn c hng ch u i v bo m u i quy nh ti khon 2 iu 6 v chng VII Ngh nh 108/2009/N-CP.2.4. Quan h vi cc d n lin quan khc

Khu vc d n hin ti cha c cng trnh pht sinh, ch c mt s on ng ang sa cha v nng cp. Tuy t nhiu cng c tc ng n d n nhng nhn chung theo tin thc hin trn th mc nh hng khng nhiu v cha ng lo ngi, bi D n u t xy dng cu Xo Vt cng ang trong giai on chun b u t, khi lng cng vic cn li kh nhiu, trc mt l lp d n u t v thit k c s trnh ph duyt, cc cng tc chun b tip theo gm kho st, lp thit k bn v thi cng tng d ton, phng n n b gii ta, san lp mt bng, tin ti thi cng xy dng cu, d kin n khi hon thnh v a vo khai thc s c th ng b vi cc d n lin quan trn.

2.5. Chng minh s cn thit ca d nHin nay, nhu cu giao thng v i li ca ngi dn huyn Long M (Hu Giang) v huyn Hng Dn (Bc Liu) l kh ln. Tuy nhin, vic kt ni giao thng gia hai a phng phn ln ph thuc vo bn ph ti Vm Ngan Da, va khng p ng c lu lng xe qua li va khng m bo an ton giao thng cho ngi dn nht l vo ma ma bo. D n ny hon thnh s gp phn nng cp v hon thin ng nha cp phi tng ng cp VI ng bng, ni t th trn Ngan Da, huyn Hng Dn, tnh Bc Liu n x Lng Tm, huyn Long M, tnh Hu Giang; ng thi phc v nhu cu giao thng, sinh hot ca nhn dn huyn Hng Dn v huyn Long M; v gim p lc lu lng giao thng, to iu kin thc y giao thng gia tnh Bc Liu v tnh Hu Giang vi cc tnh thnh trong khu vc.CHNG III: QUY M A IM D N3.1. Quy m d n3.1.1. C s chn la quy m d n

Cn c Quyt nh s 221/Q-TTg ngy 22/2/2012 ca Th tng Chnh ph v/v: Ph duyt Quy hoch tng th pht trin kinh t - x hi tnh Bc Liu n nm 2020; Cn c Quyt nh s 1496/Q-TTg ngy 27/8/2013 ca Th tng Chnh ph v/v: Ph duyt iu chnh, b sung quy hoch tng th pht trin kinh t - x hi hi tnh Hu Giang n nm 2020; Cn c Quyt nh s 356/Q-TTg ngy 25/2/2013 v/v iu chnh Quy hoch pht trin giao thng vn ti ng b Vit Nam n nm 2020 v nh hng n nm 2030;

Cn c vo nhu cu giao thng trn tuyn ng c u t xy dng v d kin pht trin;

Cn c vo phn tch vai tr a l - kinh t - x hi ca tuyn ng i vi a phng;

Cc tiu chun, quy chun ngnh v lin quan trong hot ng xy dng.

3.1.2. Qui m

+ Chiu di cu d kin: 120.9 m;

+ Chiu rng cu: 5.5m (i vi ln xe chy)

+ Nhp dn bng BTCT, nhp chnh dng cu treo dy vng.

Tnh khng thng thuyn d kin: 5m ( c S GTVT tnh Hu Giang thng nht ti cng vn s 701/GTVT-QLHT ngy 19/9/2012: 4m);

+ Chiu rng khoan thng thuyn d kin: >25m ( c S GTVT tnh Hu Giang thng nht ti cng vn s 701/GTVT-QLHT ngy 19/9/2012);

+ Ti trng cu thit k: 13 tn; (H13)

- Phng n k thut d kin:

+ Nhp chnh dng cu treo dy vng;

+ Nhp dn, m, tr cu bng BTCT;

+ ng dn vo cu lng nha.

+ S nhp: 2x15+14+32+14+2x15m

Bao gm 4 nhp gin n di 15m v 3 nhp treo 14+32+14m

- Din tch t cn thit xy dng cng trnh cu bc ngang sng Vm Ngan Da khong 2.2 ha. (Tnh lun phn mt nc sng)3.2. Khu vc t a im v a im c th3.2.1. c im a hnh

Nhn chung, a hnh Bc Liu v Hu Giang thuc kiu ng bng ven bin, c iu kin thun li pht trin cc lnh vc kinh t khc nhau. Tuy nhin, vng c nn t yu, kh khn khi xy dng cc cng trnh c bn. a hnh b chia ct bi h thng sng ngi, knh rch chng cht, thun li cho pht trin giao thng thy, nhng li kh khn cho giao thng ng b.

- a hnh vng xy dng d n thp, thng xuyn b ngp nc, c ti 90% din tch ngp v ngp mn c cha phn tim tng.

- Khu vc xy dng cu c a hnh tng i bng phng, cao t nhin thp khong 0.5-1.0m.

3.2.2. c im a cht

Vng xy dng d n l vng t mi, bao gm: t phn, t mn, t than bn v t bi bi to nn nhng cnh ng mu m.

Qu trnh lp d n s thc hin bc kho st a cht khu vc xy dng cu.

3.2.3. c im kh hu, thy vn

c im kh hu

- Khu vc xy dng cu ni ring thuc kiu kh hu nhit i gi ma cn xch o. Mt nm c 2 ma r rt: Ma ma t thng 5 n thng 11, ma kh t thng 12 n thng 4 nm sau. Nhit trung bnh nm khong 26,5oC; nhit cao nht vo thng 4, khong 27,6oC; nhit thp nht vo thng 1, khong 25oC. Bin nhit trung bnh trong nm l 2,7oC. S gi nng trung bnh trong nm t 2.500 gi, tng nhit hng nm t 9.500 n 10.000oC. Lng bc hi trung bnh khong 1.022 mm/nm, ln nht t thng 12 n thng 4. m trung bnh nm khong 85,6%, m thp nht l vo thng 3, khong 80%.

- Lng ma trung bnh nm Bc Liu cao nht so vi cc ni khc trong khu vc. Trung bnh c 165 ngy ma/nm, lng ma t khong 2.400 mm. Lng ma tp trung ch yu t thng 5 n thng 11, chim khong 90% tng lng ma c nm.

Ch gi khng b chi phi bi a hnh. Hon lu kh quyn tng thp xc lp ch gi ca tnh. Ch hon lu ma quyt nh ch gi. Ma kh, hng gi ch yu l hng ng v ng Bc, vn tc trung bnh l 1,6-2,8 m/s. Ma ma, hng gi ch yu l hng Ty hoc Ty Nam, vn tc trung bnh t 1,8-4,5 m/s.

Nhn chung, kh hu vng d n n nh quanh nm, khng b nh hng ca l v t c bo. y chnh l iu kin thun li pht trin nn nng nghip ton din, c bit l trng trt, chn nui v nui trng thy sn. Ch gi ma kt hp vi ch thy triu ven bin to ra h sinh thi thun li cho nui trng thy sn kt hp vi trng la, mang li hiu qu cao.

c im thy vnBc Liu l tnh c nhiu sng rch, bt ngun t ni a chy ra bin. Tng chiu di h thng sng, rch ca tnh khong 7.000 km, mt trung bnh 1,34 km/km2 vi tng din tch 15.756 ha, chim 3,02% din tch t t nhin ton tnh.

Do gip bin nn ch thy vn ca h thng sng rch Bc Liu chu nh hng trc tip ca bin. Khu vc gn ca sng, nh hng ca triu mnh; cng vo su bn trong, bin triu cng gim; vn tc lan triu trn sng rch tng i nh. iu ny gy kh khn trong vic tiu ng vo ma ma v cp thot nc cho cc vng nm su trong ni a.

3.2.4. Chn a im ph hp vi quy hoch xy dng, quy hoch s dng t Do hin ti gia huyn Long M (Hu Giang) v huyn Hng Dn (Bc Liu) c bn ph qua sng Vm Ngan Da v hin c ng u ni vo th trn Ngang Da v x Lng Tm nn Cng ty C phn u t Xy dng BOT & BT Min Nam quyt nh u t cu Xo Vt ti a im ny, di s ch o ca cc cp chnh quyn tnh Bc Liu v Hu Giang.Tm li, d n cu Xo Vt bt qua sng Vm Ngan Da (sng Ci Tru) ni linth trn Ngan Da, huyn Hng Dn, tnh Bc Liu vi x Lng Tm, huyn Long M, tnh Hu Giang ph hp vi ch trng ku gi u t ca hai tnh; ng thi d n cng p ng yu cu pht trin giao thng v quy hoch s dng t c cc cp, cc ngnh ph duyt.CHNG IV: CC GII PHP V YU T K THUT CHO D N4.1. Cc tiu chun thit k cu

Quy m cng trnh: Cu BTCT, tui th thit k 100 nm.

Ti trng: hot ti H13 theo qui trnh 22TCN 272-05.

Kh cu nhp treo : 5,5 + 2x0,5 = 6,5 m.

Kh cu nhp dn : 5,5 + 2x0,5 = 6,5 m.

4.2. Gii php thit k cu

Bnh din

Tim cu vung gc vi dng sng.

Tnh khng thng thuyn

Tnh khng thng thuyn phng ng 5m, phng ngang 25m.

Mt ct ngang cu

- Cu pha nhp treo:STTHng mcKch thc (m)

1Ln xe chnh2x2,75=5,5

3Lan can (2 bn)2x0,50=1,0

Tng chiu rng cu 6,5

Cu pha nhp dn:

STTHng mcKch thc (m)

1Ln xe chnh2x2,75=5,5

3Lan can (2 bn)2x0,50=1,0

Tng chiu rng cu 6,5

Kt cu nhp v kt cu phn trn:

Cu gm 7 nhp.

S nhp: 2x15+14+32+14+2x15m

Bao gm 4 nhp gin n di 15m v 3 nhp treo 14+32+14m

Chiu di cu 120.9 m.

- Mt ct ngang cu phn nhp dn:

+ Mt ct ngang nhp lp ghp gm 7 phin dm bn rng di 15m c t hng v ch to sn ti nh my b tng sau c vn chuyn v cng trng, cu lp dm vo v tr t ln cc gi cao su ct bn thp kch thc 300x150x50mm, mi u dm t 2 gi. Sau khi c lp t hon chnh tin hnh gia cng lp t ct thp bn mt cu v ct thp chn lan can, b tng chn lan can v b tng bn mt cu.

+ Bn mt cu c c bng b tng 1x2 M300 chiu dy ti chn lan can l 10cm, chiu dy ti v tr tim cu l 18cm to ra dc ngang cho mt cu l 1,5%. Ti v tr cch tim cu 3,50m b tr thp ch D12 lm g chn bnh.

+ Chn lan can kch thc 30x65cm c ti ch bng b tng 1x2 M300, khi lp t ct thp chn lan can cn t sn cc ng nha xon D40 ch lun dy cp in chiu sng pha lan can bn phi cu dn v lp t ct thp ch lm chn ct n. Ti cc v tr chn ct n b tr hc ch ni dy cp in ln n. Trn nh ca chn lan can b tr sn cc bulong ch lin kt lan can thp m km pha trn. ng thi t sn cc ng thot nc cao ph hp hoc cha li cc v tr lp t ng thot nc cho mt cu.

+ Bn mt cu sau khi hon thin s c phun 1 lp vt liu chng thm Recond 7. Ti nha dnh bm tiu chun 0.5kg/m2 sau thm lp BTNC 9.5 dy 5cm.

+ Trn cu b tr 3 khe co gin ti v tr m, tr T1, tr T6. Khe co gin dng loi khe co gin ray thp OVM E80, chiu di mi khe l 10,40m. Khi thi cng m v bn mt cu cha li phm vi lm khe co gin v thp ch thi cng khe co gin. Vt liu lm di bo v khe co gin dng va Sikarout 214-11 vi 50% 1x2.

- Mt ct ngang cu phn nhp treo: nhp treo bao gm 35 khoang dn mi khoang dn cch nhau 2.125m. Ring v tr hp long 2 khoang dn cch nhau 2m.

+ Nhp treo gm 2 mt ct ngang trn m tr v mt ct ngang treo bi cp thp.

Mt ct ngang nhp treo trn m tr: kh cu 6,37m gm 1 dm ngang thp I600x200x11/17mm lin kt vi h 12 dm dc I300x150x6.5/9mm. Cc dm dc cch nhau 0,5m. Cc dm ngang cch nhau 2.125m. Cc dm ngang c gia cng bng thp tm dy 10mm. Cc dm dc lin kt vi dm ngang bng thp tm.

Mt ct ngang nhp treo bng cp: kh cu 7,30m gm 1 dm ngang thp I600x200x11/17mm lin kt vi h 12 dm dc I300x150x6.5/9mm. Cc dm dc cch nhau 0,5m. Cc dm ngang cch nhau 2.125m. Cc dm ngang c gia cng bng thp tm dy 10mm. Cc dm dc lin kt vi dm ngang bng thp tm. Trn dm ngang b tr cc mc treo cp bng thp tm dy 3cm. Pha di dm ngang b tr cc bt thp lp rp thanh chnh hnh khi thi cng xong tng on dn.

H lan can ca dn bao gm m thng v m h. M h bng thp hnh C100x50x5/7.5mm. H m thng bng thp hnh C120x50x4,8/7,8. Thanh cho bng thp hnh C100x50x5/7.5mm. Thanh ng ti v tr cc nt bng thp hnh C100x50x5/7.5mm. H lan can lin kt vi cc dm ngang bng thp tm dy 14mm.

+ Kt cu m:

*M cu pha Bc Liu:

- Dng dng m b thp BTCT M300 ti ch. Bn di l lp lt bng 4x6 chn va xi mng M150 dy 10cm. M c 2 tng cnh dy 40cm di 2m. Tng cnh m thng gc vi b m nhm lin kt vi tng cnh m. Tng u m dy 35cm.

- Mng cc: mi m dng 12 cc ng thng BTCT 40x40cm M300. Chiu di d kin cc khong L=42m. Cc cc ng thnh 2 hng i xng vi nhau. Chiu di cc i tr s c quyt nh cn c theo kt qu th ng cc u tin.

-Bn qu : 2 bn qu BTCT M250 kch thc 3.35x3m Dy 30cm. Bn qu ti ch. Bn qu c k ln dm v kt cu 4x6 m dm.

*M cu pha Hu Giang:

- Dng dng m b thp BTCT M300 ti ch. Bn di l lp lt bng 4x6 chn va xi mng M150 dy 10cm. M c 2 tng cnh dy 40cm di 2m. Tng cnh m xin gc vi b m 1 gc 1130 Tng u m dy 35cm.

- Mng cc: mi m dng 12 cc ng thng BTCT 40x40cm M300. Chiu di d kin cc khong L=42m. Cc cc ng thnh 2 hng i xng vi nhau. Chiu di cc i tr s c quyt nh cn c theo kt qu th ng cc u tin.

- Bn qu : 2 bn qu BTCT M250 kch thc 3.35x3m, Dy 30cm. Bn qu ti ch. Bn qu c k ln dm v kt cu 4x6 m dm.

+ Kt cu tr cu: Cu c 6 tr chia lm 2 loi

- Tr thp gm 2 tr hnh ch H bng BTCT M300 chiu cao tnh t y b n nh tr l 27,25m. Trn thp c thp ch cng cp thp treo h dn thp. Tr thp ta trn h 22 cc BTCT 40x40cm chiu di d kin l 42m. H cc chia lm 3 hng ng so le hnh hoa mai. Hng cc gia bao gm 8 cc ng thng ng. Hai hng cc bn mi hng 7 cc ng xin 1:6 theo phng dc cu.

- Tr cu nhp dn c 4 tr thn ct ng knh 1m, mng cc b thp BTCT M300 ti ch. Tr cu c tai che kch thc 800x1200mm dy 10cm. Tr cu t trn h 12 cc 40x40cm chiu di d kin 42m. H cc chia lm 2 hng i xng nhau. Mi hng gm 6 cc ng xin 1:6.

ng u cu:

ng u cu pha Hu Giang:

ng u cu di khong 57m. Trong chia lm 2 on. on t m ra 15m mi taluy c lm bng hc chn va M100. on cn li mi taluy bng t dnh dc 1:1. V do iu kin a hnh m bo kt cu ph hp nn t vn chn ng cong nm bn knh R=10m.

- on 1 : p mi taluy dc 1: 1 bng hc chn va M100 dy 30cm. Chn khay bng hc chn va M100 kch thc 0,7x0,8m. Nm trn h c trm 8-10mm, chiu di 4.5m, mt 25 cy/m2.

- on 2 : p bng ct, mi taluy bng t dnh p dc 1:1.

Mt ct ngang ng u cu c chiu rng phn xe chy bng 5,5m. C th kch thc mt ct ngang nh sau:

+ Phn mt ng xe chy mt ng lng nha rng 5,5m.

+ Phn l hc chn va M100 hay phn l t dy rng 0,5m.

- Thot nc ng u cu bng ng nc PVC 100 v tng lc ngc bng 1x2 v vi a k thut bc xung quanh 1x2.

- Tng h lan mm hai bn ng u cu di 20m bng h tr thp v tn ln sng.

- Sn do nhit loi 1.1 tim ng v loi 1.5 hai bn.

ng u cu pha Bc Liu:

ng u cu di khong 55m. Chia lm 2 nhnh kt ni v mt ng hin hu. Mi nhnh chia lm 2 on. on t m ra 15m mi tuy c lm bng hc chn va M100. on cn li mi taluy bng t dnh dc 1:1. V do iu kin a hnh m bo kt cu ph hp nn t vn chn ng cong nm bn knh R=10m.

- on 1 : p mi taluy dc 1: 1 bng hc chn va M100 dy 30cm. Chn khay bng hc chn va M100 kch thc 0,7x0,8m. Nm trn h c trm 8-10mm, chiu di 4.5m, mt 25 cy/m2.

- on 2 : p bng ct, mi taluy bng t dnh p dc 1:1.

Mt ct ngang ng u cu c chiu rng phn xe chy bng 5,5m. C th kch thc mt ct ngang nh sau:

+ Phn mt ng xe chy mt ng lng nha rng 5,5m.

+ Phn l hc chn va M100 hay phn l t dy rng 0,5m.

- Thot nc ng u cu bng ng nc PVC 100 v tng lc ngc bng 1x2 v vi a k thut bc xung quanh 1x2.

- Tng h lan mm hai bn ng u cu di 20m bng h tr thp v tn ln sng.

- Sn do nhit loi 1.1 tim ng v loi 1.5 hai bn.

Mt ct dc

Cc yu t khng ch trc dc:

+ dc dc thit k 7%

+ Kh thng thuyn 5x25m.

+ Mc nc cao nht khng ch l +2.47m (tham kho lch thy triu Vin K Thut Bin)

+ Bn knh ng cong ng ti thiu l 600m.

Thit k x l nn ng

Khu vc c tng t yu dy. ng thi phn nn ng mi khng chy trn nn c nn cn gia c cho nn ng m bo gim ln. o hu c dy 1m. Sau tri vi a k thut R=25KN/m. p b ph li bng ct m ln K95.

m bo cng mt ng t yu cu Eyc 100 Mpa, kt cu o ng c chn nh sau (tnh t trn xung):

Kt cu nn mt ng t trn xung di nh sau* Phn mt ng trn kt cu ng hin hu:

- p mi taluy dc 1:1 bng hc chn va M100 dy 0,3m.

Mt ng lng nha 3 lp 3Kg/m2.

Ti nha thm bm 1Kg/m2.

Cp phi dm loi 1 dy 15cm.

Cp phi dm loi 2 dy 30cm.

Vi a k thut R=12KN/m.

Ct p K98 dy 50cm.

Ct p K95.

Nn mt ng hin hu.

* Phn mt ng m rng:

- p mi taluy dc 1:1 bng hc chn va M100 dy 0,3m.

Mt ng lng nha 3 lp 3Kg/m2.

Ti nha thm bm 1Kg/m2.

Cp phi dm loi 1 dy 15cm.

Cp phi dm loi 2 dy 30cm.

Vi a k thut R=12KN/m.

Ct p K98 dy 50cm.

Ct p K95.

Vi a k thut R=25KN/m.

Bo hiu giao thng

Bin bo giao thng: theo Quy chun k thut Quc gia v bo hiu ng b QCVN41:2012/BGTVT

Bin bo tn cu v bin bo ti trng mi bn cu 1 ci.

H thng thot nc phn ng

Thot nc t nhin sang 2 bn ng

H thng chiu sng trn cu1. Thng s k thut chiu sng

Theo TCXDVN 333 : 2005, TCXDVN 259:2001 v QCVN 07:2010/BXD h thng n chiu sng trn cu c cc thng s ti thiu phi tho mn cc tiu chun sau:

+ ri mt ng ti thiu: Etb >= 10 lux.

+ chi ti thiu: Ltb >= 2 cd/m2.

+ chi u chung : Uo>= 40%

+ chi u theo chiu dc : >= 70%

2. Gii php thit k

a. B tr n chiu sng:

B tr mi cc tr chiu sng trn cu, v ng dn vo cu, lp t mi 02 t chiu sng cp ngun v iu khin chiu sng cho h thng, thc hin ngm ha cc tuyn cp m bo an ton v m quan. Ring phn dy cp ngun n t iu khin i ni.

b. B tr n :

Bng BTCT M300, gn trc tip vo lan can cu. B c kch thc 45x45x32cm. Trn b tr c t sn cc bu lng 24mm ch lin kt ct n. B c thi cng ng thi vi lan can, l b hnh.

c. Loi n s dng:

n chiu sng ng chn loi n cao p Sodium hai cp cng sut 250W/150W-220V (High Pressure Sodium HPS ) do c u im tiu th in thp nhng chiu sng rt cao 100lm/W so vi loi n nh sng thy ngn cao p khong 58 lm/W hay bng si t khong 14lm/W. Ngoi ra loi n ny c u im l c kh nng iu chnh cng sut trn bng n theo cch vn hnh tit kim in, loi n ny c tui th cao; ng thi nh sng vng ca n Sodium lm tng nhy, phn bit i vi mt thng gp phn vo vic gim thiu cc tai nn giao thng v m.

d. Ct n:

S dng ct n bng ng st m km dy 3mm, kiu dng trn cn. Chiu cao ct c chn da trn b rng mt ng v cch b tr n, cn c vo b rng mt ng hon thin, chn ct c chiu cao 8m (cha k cn n), b dy ng bng 3mm. Ct n khi gia cng xong c m nhng nng trong km chng r st. Mt phn ca thn tr c ph sn Eposite trang tr (chi tit xem bn v).

ng knh y: 186mm.

ng knh nh: 76mm.

dy: 3mm

e. Cn n:

C cao 2,0 m v vn xa 1,5m, s dng loi cn n n, bng ng st m km dy 3mm, kiu dng cn trn, gc nghing ca cn n vi mt ng l 15o (Chi tit theo bn v).

ng knh: 78mm

dy: 3.0mm

f. Dy dn:

thc hin ph hp vi mng in chiu sng hin hu trn tuyn v ph hp m quan trn cu, h thng li in chiu sng trn cu c thit k ngm trong l b hnh trn cu.

Chng loi cp c la chn phi tho mn cc iu kin pht nng, chu mi trng m t v kh nng ti bo m.

S dng cp Cu/XLPE/DSTA/PVC 0,6/1kV 4x10mm2 cho h thng n chiu sng cng cng xy dng ngm trn cu v cho phn cp ngun t li in khu vc cho cc tr chiu sng trn cu

H thng li in chiu sng ngm thit k s dng cp ngm cch in bng XLPE/DSTA/PVC, cp c lun trong cc ng nha HDPE 65/50 v c lun trong l b hnh. Khi n cc ct n th chui ln u vo bng in ca ct.

Cp ni t bng in ca ct n cc bng n s dng cp Cu/XLPE/PVC 5( 2,5mm2 cc mi ni s dng u cosse ng c thch hp v qun bng keo cch in.

Cp iu khin dng ko dy iu khin cho h thng n chiu sng cng cng dng cp Cu/XLPE/PVC /DSTA/PVC 0.6/1KV 2x6mm2.

Tip a: dng cc tip a (16mm, di 2,4m ng su cch mt t ti thiu 0,8m ti v tr t in v tr n u m. Lin kt gia tr n n cc tip a v gia cc tr n vi nhau bng dy cp ng trn tit din 25mm2. Cp ng trn i theo ng lun cp HDPE D65/50 ni vo cc tip a.

g. Ngun in:

S dng ngun in ang cung cp cho bn ph cung cp in cho n chiu sng. Dng cp CXV/DSTA/PVC i trn khng dn in t ngun cung cp cho cc tr n hin hu n tr n lp mi gn nht sau dn xung ca tr thng qua cc ng nha PVC D60 ng thi u ni vo dy dn n cc n tip theo. Trn cu cc dy dn c i ngm trong chn lan can cu. Dy dn t ct n cui trn nhp c nh dn xung ct n trn nh tr ta c i trn cao.

h. Tr chng va: 4 tr chng va pha thng lu v h lu

Tr chng va gm 3 cc bng thp hnh ghp i I600x200x13/23 di 30m. Cc cc lin kt vi nhau bng h ging thp hnh I350x175x7/11.Chiu su ngm t l 23m v phn tnh khng l 7m.

T chc thi cng

Cng tc chun b

Cc cng tc chun b bao gm nhng cng vic chnh nh sau:

Chun b cc bi tp kt vt liu, xe my, bi t bn, t o khng thch hp. Bi bn t thi phi c xc nh l ph hp gia cc bn c lin quan.

Kho st vt liu, bao gm cc vt liu p nn, mt ng

T chc vn chuyn, tp kt vt liu n cng trng.

T chc cc bi c cu kin trn cng trng: c cc

T chc xy dng nh iu hnh ca ch u t, ln tri, nh lm vic cho nh thu, nh lm vic cho cc t chc t vn gim st.

4.2.1. Thi cng ng

Cng tc nh v

ng tim tuyn cn c khng ch bi h thng cc mc c trn thc a do T Vn Thit K thc hin v bn giao cho n v Thi cng. n v thi cng phi bo qun h thng cc mc cn thn, trnh h hng do xe c, thit b thi cng. C th lp thm cc mc ph phc v o c thi cng. Trong 15 ngy k t ngy bn giao cc mc hin trng, n v Thi cng bng thit b ca mnh cn kim tra o c li cc mc ta , cao trc khi thi cng, nu c sai khc cn thng bo cho cc bn bit c bin php hiu chnh nu cn thit v ngc li, n v thi cng t b chi ph khi phc.

Thi cng ng u cu

o khun ng n cao thit k; lu ln tng lp t cht yu cu. Nu pht hin cao thit k t nn ng yu cc b, ln bn rc hu c khng th lu ln t cht yu cu th cn thc hin o thay t tip, sau m nn li theo tng lp.

Cng tc thi cng nn ng phn m rng bng c gii. Cng tc o kt hp o c gii vi th cng. t o c vn chuyn khi cng trng v ni qui nh.

Thi cng p taluy bo v nn ng.

Cng tc thi cng nn ng phn m rng bng c gii kt hp vi th cng (i vi khu vc c cng trnh ngm). t o c vn chuyn khi cng trng v ni qui nh.

Khi thi cng trong ma ma cn c gii php thot nc cho nn ng mt ng, trnh khng nc ng d gy tai nn giao thng, lm ph hoi kt cu nn ng, mt ng.

Thi cng cc lp kt cu o ng

Mng cp phi dm

Thi cng lp cp phi dm tun th theo quy nh k thut thi cng v nghim thu lp cp phi dm trong kt cu o ng t 22 TCN 334-2006 ca B Giao Thng Vn Ti. Bao gm cc cng vic c th sau:+ Cng tc chun b thi cng:Ly mu CPD th nghim kim tra cht lng so vi yu cu bng 1 (Qui trnh) v tin hnh m nn tiu chun xc nh dung trng kh ln nht kmax v m tt nht Wo ca CPD (theo tiu chun m nn ci tin AASHTO T180). Xc nh h s ri (h s ln p) K ti c th tm ly bng 1,3 v xc nh chnh xc thng qua ri th.

Chun b cc thit b phc v kim tra trong qu trnh thi cng:

Xc xc khng ch b dy v thc mui luyn.

B sng v cn phn tch thnh phn ht.

B th nghim ng lng ct (kim tra bn).

Trang thit b xc nh m ca CPD.

B th nghim rt ct kim tra cht (xc nh dung trng kh sau m nn).

Chun b cc thit b thi cng:

t vn chuyn CPD.

Trang thit b phun ti nc mi khu thi cng (xe sitc phun ti, bm c vi ti cm tay, bnh ti th cng)

My ri CPD (trng hp bt c d c th dng my san t hnh bnh lp san ri cho lp mng di; tuyt i khng c dng my i san gt).

Cc phng tin m nn: Tt nht l c lu rung bnh st c 3-6 tn, ngoi lu rung phi c lu tnh bnh st 8-10 tn. Nu khng c lu rung, c th thay bng lu bnh lp v ti trng bnh 2.5-4 tn/bnh.

Chun b nn, mng pha di lp CPD sao cho vng chc, ng u, m bo dc ngang theo thit k.

Trnh t thi cng:

Vn chuyn CPD n hin trng thi cng:

Phi kim tra cc ch tiu ca CPD trc khi tip nhn. Vt liu CPD phi c pha t vn gim st chp thun ngay ti c s gia cng hoc bi cha.

Khng c dng th cng xc CPD ht ln xe, phi dng my xc gu ngom hoc xc gu bnh lp.

n hin trng xe CPD trc tip vo my ri: Nu ch c my san th mt xe phi lm mt s ng nh gn nhau c ly san gt ngn. Chiu cao ca y thng xe t khi ch c cao trn mt ri 0m50.

Ri CPD:

Khi ri (hoc san) m ca CPD phi bng m tt nht Wo hoc Wo + 1%, nu CPD cha m th phi va ri (hoc va san) va ti thm nc bng bnh hoa sen hoc xe sitc vi vi phun cm tay chch ln to ma (trnh phun mnh lm tri cc ht nh, ng thi bo m phun u), hoc bng dn phun nc pha trn bnh lu ca xe lu.

B dy 1 lp khng qu 15-18cm (sau khi ln cht). Nu c cc phng tin lu nng v qua ri th thy t yu cu m nn th cho php b dy 1 lp ti 20-25 cm (sau khi ln cht). B dy ri phi nhn vi h s ri v phi khng ch bng xc xc.

Trong qu trnh san, ri CPD, nu pht hin c hin tng phn tng (tp trung c ht ln) th phi xc i thay cp phi mi. Cm khng c b cc c ht v trn ti ch, nu c hin tng km bng phng cc b th phi khc phc ngay bng chnh li thao tc my.

Thi cng 2 lp CPD k lin th trc khi ri CPD lp sau, phi ti m mt ca lp di v phi thi cng ngay lp sau trnh xe c i li lm h hng b mt lp di.

Cng tc kim tra th nghim:

Vt liu CPD phi c kim tra v thnh phn ht, v t l ht dt, v ch s do hoc ng lng ct (ES). Phi ly mu CPD trn thng xe khi ch CPD n hin trng. Khi thay i m hoc loi sn xut CPD phi kim tra tt c cc ch tiu ca CPD ng thi tin hnh th nghim m nn.

C 200m3 hoc mt ca thi cng phi kim tra m ca CPD trc khi ri nh qui nh.

Kim tra cht ca mi lp CPD sau khi lu ln. Phng php kim tra: Phng php rt ct theo qui trnh 22 TCN 346-06.

Kim tra nghim thu:

Kim tra cht kim tra 3 im ngu nhin theo phng php rt ct 22 TCN 346-06. H s K kim tra phi ln hn hoc bng K thit k.

Kim tra b dy kt cu. Kt hp vi vic o h kim tra cht tin hnh kim tra chiu dy lp kt cu CPD, sai s cho php 5% b dy thit k nhng khng c qu 10mm i vi lp mng di v khng di 5mm i vi lp mng trn.

Cc kch thc khc v bng phng: C 200m di phi kim tra 1 mt ct.

B rng, sai s cho php so vi thit k 10cm.

dc ngang, sai s cho php so vi thit k 5%.

Cao cho php sai s so vi thit k 10mm i vi lp di v 5mm i vi lp mng trn.

bng phng o bng thc o di 3m theo TCN 16-79, khe h ln nht di thc khng c vt qu 10mm i vi lp di v 5mm i vi lp mng trn. Mt ng lng nha 3 lp:

Thi cng mt ng lng nha 3 lp phi tho mn tiu chun k thut thi cng v nghim thu mt ng lng nha 22TCN271-2001

Cng tc chun b thi cng:

Mt ng dm lm mi th khi thi cng n giai on 3 khng cn thc hin cc cng vic ti nc, ri ct, ti nha thm bm.

Mt ng cp phi dm mi th phi c nghim thu theo quy nh ca quy trnh 22TCN252-98

Chun b xe my v thit b thi cng :

+ Xe qut chi v ti ra mt ng.

+ My hi p .

+ Xe phun ti nha.

+ Thit b ti nha cm tay.

+ Xe ri hoc thit b ri lp vo t.

+ Lu bnh hi vi ti trng mi bnh 1,5-2,5T. Chiu rng lu ti thiu l 1,5m.

+ Lu bnh st 6-8 tn.

+ Barie chn ng, bin bo.Thi cng:

Phun ti nha nng:

+ Nha c 60/70 un nng n 1600C (Nu dng nha c 40/60 th un nng n 1700C c phun ti theo nh mc tu theo th t ti bng xe phun nha.

+ Lp nha phun ra mt ng phi u v kn mt. Tc xe ti nha 5-7Km/h.

+ nhng dc ln hn 4% th xe phun ti nha i t chn dc ln trn trnh nha khi chy dn.

Ri :

+ Ri bng xe ri chuyn dng hoc bng thit b ri pha sau thng xe t. Vic ri phi tin hnh ngay sau khi ti nha nng, chm nht l sau 3 pht.

+ Tc xe v khe h ca thit b c iu chnh thch hp tu theo lng cn ri trn 1m2.

Lu ln :

+ Dng lu bnh hi c ti trng mi bnh t 1,5-2,5 tn, b rng lu t nht l 1,5m, lu ln sau mi t ri . Tc lu lt u l 3km/h. Trong cc lt sau ln lt 10Km/h. Tng s lt lu l 6 ln qua mt im. Nu khng c lu bnh hi c th dng lu bnh st 6-8 tn. Tc cc lt lu u l 2km/h. Sau tng dn ln 5 Km/h. Tng s lt lu l 6-8 ln qua mt im. Khi c hin tng v phi dng lu.

+ Xe lu i t mp vo gia v vt lu phi chng ln nhau t nht 20cm. Phi gi bnh xe lu lun kh v sch.

Bo dng sau khi thi cng:

+ Mt ng lng nha sau khi thi cng xong c th cho thng xe ngay.Trong 2 ngy u tc cn hn ch khng qu 10Km/h v khng qu 20km/h trong vng 7-10 ngy sau khi thi cng. Trong thi gian ny nn t cc barie trn ng iu chnh xe t chy u khp trn mt ng ng thi hn ch tc xe.

+ Sau khi thi cng cn b tr ngi theo di, bo dng trong vng 15 ngy qut cc vin ri rc bn ra l khi xe chy, sa cc ch li lm cc b, nhng ch tha nha thiu hoc ngc li.

Gim st , kim tra v nghim thu:

Vic gim st v kim tra c tin hnh thng xuyn trong qu trnh thi cng lp lng nha trn cc loi mt ng.

Kim tra cao v kch thc hnh hc ca mt ng

Kim tra bng phng ca mt ng bng thc di 3m.

Kim tra cht lng b vnh, v g nu l mt ng c.

Kim tra sch v mc kh ro ca mt ng bng mt.

Kim tra k thut ti nha thm bm: u khp, chiu su thm, thi gian ch i nha ng c.

Kim tra lng nha thm bm dng trn 1m2 bng cch ghi li vch ch mc nha trong thng cha nha ca xe phun nha trc v sau khi phun nha trn mt din tch bit, ly hiu s ca hai th tch tng ng vi hai mc y chia cho din tch c ti.

Kim tra xe my v thit b.

Kim tra cht lng vt liu.

4.2.2. Thi cng cu

Trnh t thi cng

Thi cng cu :

San lp mt bng.

Thi cng cc th.

Thi cng cc i tr.

Thi cng b tng m cu.

Thi cng b tng tr cu.

Thi cng cu lp dm.

Thi cng bn mt cu, lan can.

Thi cng ng u cu song song vi qu trnh thi cng kt cu nhp.

Hon thin.

Cng tc chun b

Cc cng tc chun b bao gm nhng cng vic chnh nh sau:

Trc khi thi cng cn tin hnh gii phng mt bng, cc cng trnh kin trc v cng trnh h tng k thut khc nh cc ng in trung h th, thng tin lin lc, trn khu vc. y l 1 bc quan trng v rt phc tp, thng ko di lm nh hng n tin thi cng, c bit l h thng cng trnh k thut nh cp in, in thoi, trong cc tr in bn tri tuyn nh hng trc tip n an ton trong thao tc ca thit b thi cng ng cc,... Do cn u tin thc hin cc cng tc di di cc cng trnh ny dt im trc khi khi cng cng trnh.

Cn c s phi hp cht ch gia cc ban, ngnh chc nng trong vic quy nh trnh t v bin php thi cng.

Chun b cc bi tp kt vt liu, cc bn tm trung chuyn vt liu t ng thy ln b ti b sng.

Xc nh cht lng nc ging khoan v tr xy dng cu. Lp t cc trm in h th phc v thi cng.

Kho st ng vn chuyn thit b thi cng, cu kin c sn n cng trng.

Kho st vt liu, bao gm cc vt liu p nn, mt ng, cc vt liu nhp ngoi nh vi a k thut, gi cu, khe co gin ; t chc khai thc v vn chuyn, tp kt vt liu n cng trng.

T chc cc bi c cu kin c sn, gia cng cu kin thp.

Xy dng nh iu hnh ca ch u t, ln tri, nh lm vic cho nh thu, nh v lm vic cho t vn gim st.

T chc xy dng cc phng th nghim hin trng.

Cng tc m bo an ton, m bo giao thng trong thi cng

Cng tc m bo an ton trong qu trnh thi cng:

Cc thit b thi cng nh cn cu, dn my phi c kim tra ng qui nh v k thut an ton trong xy dng trc khi tp kt n cng trng; nn t ti cc v tr tp kt cc thit b phi m bo n nh, chc chn; cc thao tc ca cu cn thc hin trn nguyn tc khng nh hng n cc nh dn xung quanh cng nh cc phng tin giao thng i li trn tuyn;

Phng n m bo giao thng

m bo giao thng c thng sut trong qu trnh thi cng cu, cn lm ng v cu tm

Kt cu cu tm:

Tr cu tm bng 2 cc thp hnh I400 chiu di 12m.Lin kt vi nhau bng ging ngang thp hnh I200 v ging cho bng thp gc L75x75. Cu tm gm 10 nhp dm bng c lasen di 11m/ nhp, chiu di cu tm L=110m, rng 2m lt lng v tng b rng tnh n lan can l 2.5m.

Cc phng n m bo an ton, m bo giao thng trong qu trnh thi cng phi c nh thu lp v trnh T Vn Gim St c chp thun trc khi trin khai thi cng.

Cng tc nh v

nh v m, tr cu c thc hin bi n v thi cng trn c s h thng cc mc c n v T Vn Thit K bn giao.

4.2.3. Thi cng cc hng mc cng trnh

Thi cng cu ng tm

Gia cng cc cu kin thp;

Thi cng tr cu.

Lao lp c lasen lm kt cu nhp.

Thi cng mt cu, lan can.

Thi cng ng dn u cu.

Sau khi thng xe cu chnh cn tho d, thanh thi ton b cu tm, tr v hin trng ban u

Thi cng m cu

Cng tc thi cng ch yu

Bc 1: Thi cng cc :

Chun b mt bng, xc nh v tr tim m cu.

Thi cng ng cc th m.

Th ng cc quyt nh chiu di chnh thc ca cc.

Bc 2: thi cng m cu:

ng vng vy cc vn thp. o t h mng n cao thit k.

Thi cng lp b tng lt mng.

Ht nc h mng ng thi p b tng u cc .

Gia cng v lp dng gio, vn khun, ct thp thn, m m cu.

b tng m cu.

Bc 3: hon thin

Tho d sn o thi cng.

Tho d gio, vn khun, chuyn cc thit b thi cng cc hng mc khc.

Tho d sn o thi cng.

Tho d gio, vn khun, chuyn cc thit b thi cng cc hng mc khc.

Thi cng tr cu

Cc cng tc thi cng ch yu:

Bc 1: Thi cng cc :

Vn chuyn cc n v tr thi cng .

ng cc th tr.

Th ng cc quyt nh chiu di chnh thc ca cc.

Bc 2: Thi cng m cu:

ng khung nh v cc. ng cc n cao thit k

ng vng vy cc vn thp.

o t h mng n cao thit k.

Thi cng lp b tng lt mng.

Thi cng b tng bt y

Ht nc h mng ng thi p b tng u cc .

Gia cng v lp dng gio, vn khun, ct thp thn, m m cu.

b tng tr cu..

Bc 3: Hon thin

Tho d sn o thi cng.

Tho d gio, vn khun, chuyn cc thit b thi cng cc hng mc khc.

Tho d sn o thi cng.

Tho d gio, vn khun, chuyn cc thit b thi cng cc hng mc khc.

Cc lu trong qu trnh thi cng kt cu phn di:

Cc cc mc khng ch mt bng v cao ca cu cn c bo qun sut qu trnh thi cng n khi nghim thu bn giao cng trnh. Trong trng hp cn thit cn thc hin du gi cc cc n v tr thch hp sau ny c th khi phc d dng.

Cng tc nh v tim dc m, tr cu c thc hin bng h cc ca h s thit k v kim tra li bng thc thp. nh du v tr tim ngang, tim dc m v gi cc du ra ngoi phm vi thi cng. Trong qu trnh thi cng cn thng xuyn kim tra tim dc, tim ngang ca tng m, tr v v tr tng i gia cc m v tr v cc tr vi nhau, kt qu kim tra phi c th hin trong h s lm c s cho cng tc nghim thu.

Trong qu trnh o h mng, phi to cc h t nc ti cc gc h mng bm ht nc, m bo h mng lun kh, sch. H mng c bo v bng tng cc vn thp hay cc kt cu thch hp, m bo n nh trong sut qu trnh thi cng hng mc m cu.

Thi cng kt cu nhp

Cng tc thi cng chnh:

Thi cng kt cu nhp cu:

Cu lp dm cu bng hai cu Thi cng dm ngang lin kt cc dm cu.

Thi cng mt cu, khe co gin.

Thi cng l b hnh, lan can.

Thi cng lp ph BTN.

Cc lu trong qu trnh thi cng

Thi cng lan can cu

Cng tc hon thin.

Cng tc hon thin bao gm mt s cng vic:

Hon thin cc b mt btng lan can, kt cu nhp, m phn nh trn mt t.

Dn dp mt bng cng trng, vn chuyn cc vt liu tha, cc h gio, khung nh v ra khi cng trnh.

Thanh thi lng sng, bao gm c phn t p ln ra sng trong qu trnh thi cng, h gio, ph tr thi cng, m bo khng cn bt c chng ngi vt st li trong khu vc cng trng.

Hon thin mi taluy, lm v sinh mt nh m tr cu, b k gi

4.2.4. Mt s lu trong thi cng

Cng tc t chc cc im tp kt vt liu, cc ng cng v, cc xng ch to cc cu kin c sn cn c phi hp v thc hin ng b gia cc hng mc cng trnh vi nhau. Cc a im tp kt vt liu, xe my thi cng, c cc cu kin c sn cn c kin chp thun ca cp c thm quyn v s ng thun ca ch s hu phn t tm chim dng.

Dc 2 bn tuyn c nh dn, do cng tc m bo an ton, m bo giao thng trong qu trnh thi cng phi c c bit quan tm. Mt s yu cu v t chc thi cng, m bo an ton giao thng nh sau:

Lp s b tr thi cng, t chc m bo giao thng, iu tra hin trng nh dn trc khi ng cc v sau khi ng cc xc nh thit hi nu c.

Cc cng tc m bo an ton, m bo giao thng trong qu trnh thi cng nh sau:

Ro chn hai u khu vc thi cng cu bng tn cao H=2m. Hng ro phi chc chn, phn quang vo ban m, khu vc thi cng phi nh sng vo ban m;

B tr cc bin bo hiu nh bin bo hn ch tc , bin bo cng trng, bin bo nguy him v cc bin bo hiu cn thit khc c 2 u ca tng on tuyn ang trin khai thi cng. S dng cc loi bin bo 103, 107, 417, 505..

Phi hp vi cng trnh k thut:

Cc tr in trung, h th trn dc tuyn trong phm vi cng trnh cn phi c di di trc khi thi cng. nu trng hp cha di di kp th cc thit b thi cng c chiu cao ln nh cn cu, my o ch c hot ng ngoi hnh lang an ton ca ngnh in lc.

Do trn on ny cn c cng trnh ngm, trc khi thi cng n v thi cng cn phi hp vi cc n v lin quan nh v r cc cng trnh ngm trn thc a bng cch i chiu cc s do cc c quan qun l chuyn ngnh cung cp v tin hnh o thm d.

4.3. Thit b thi cng ch yu

My san

: 01 myMy o

: 02 ciMy lu 10T

: 03 myXe t 10T

: 04 chicMy trn BT loi 250l: 02 chicMy trn BT 400 lt

: 01 chicMy hn

: 02 chicMy m b tng cc loi: 10 chicMy pht in

: 02 chicCn cu 40T

: 01 chicMy bm nc

: 02 chic

My bm va xi mng: 02 chic

Gi ba chn

: 01 dn

4.4. Yu cu vt liu

Vt liu u phi t yu cu theo quy trnh hin hnh, ngoi ra cn lu mt s vn sau:

Phn cu :

Ct thp thng: ph hp vi tiu chun TCVN 1651-2008

Thp trn trn: dng loi thp CB240-T, CB300-T, gii hn chy 240 MPa;

Thp c thanh vn: dng loi thp CB300-V. CB400-V, CB-gii hn chy 400 Mpa.

Ct thp lan can: dng thp A-I mc CT3 m km, chiu dy m ti thiu 90 (m.

Ph gia: cn tun th theo ng ch dn ca nh sn xut, khng cha cc cht n mn ct thp v khng nh hng ti tui th b tng.

Xi mng: loi xi mng Porland ph hp vi tiu chun TCVN 6260 - 1997 v TCVN 2686-1992.

Nc phc v thi cng:ph hp vi TCXDVN 302-2004Nc cho btng v va.

dm b tng: TCVN 7570:2006 - Ct liu cho b tng v va yu cu k thut v TCVN 7572:2006 - Ct liu cho b tng v va Phng php th.

Ct liu ln c th c cung cp di dng hn hp nhiu c ht hoc cc c ht ring bit. Thnh phn ht ca ct liu ln, biu th bng lng st tch lu trn cc sng, c quy nh trong Bng sau:

Kch thc l sngmmLng st tch ly trn sng, % khi lng, ng vi kch thc ht liu nh nht v ln nht, mm

5-105-205-405-7010-4010-7020-70

100(((0(00

70((00-1000-100-10

40(00-1040-700-1040-7040-70

2000-1040-7040-7090-100

100-1040-7090-10090-100(

590-10090-10090-10090-100(((

Hm lng bn, bi, st trong ct liu ln tu theo cp b tng khng vt qu gi tr quy nh trong Bng sau:

Cp b tngHm lng bn, bi, st, % khi lng, khng ln hn

Cao hn B301,0

T B15 n B302,0

Thp hn B153,0

lm ct liu ln cho b tng phi c cng th trn mu nguyn khai hoc mc xc nh thng qua gi tr nn dp trong xi lanh ln hn 2 ln cp cng chu nn ca b tng khi dng gc phn xut, bin cht; ln hn 1,5 ln cp cng chu nn ca b tng khi dng gc trm tch.

Mc dm xc nh theo gi tr nn dp trong xi lanh c quy nh trong Bng sau:

Mc dm* nn dp trong xi lanh trng thi bo ho nc, % khi lng

trm tch phn xut xm nhp v bin cht phn xutphun tro

140(n 12n 9

120n 11Ln hn 12 n 16Ln hn 9 n 11

100Ln hn 11 n 13Ln hn 16 n 20Ln hn 11 n 13

80Ln hn 13 n 15Ln hn 20 n 25Ln hn 13 n 15

60Ln hn 15 n 20Ln hn 25 n 34(

40Ln hn 20 n 28((

30Ln hn 28 n 38((

20Ln hn 38 n 54((

* Ch s mc dm xc nh theo cng chu nn, tnh bng MPa tng ng vi cc gi tr 1 400; 1 200; ...; 200 khi cng chu nn tnh bng kG/cm2.

Si v si dm dng lm ct liu cho b tng cc cp phi c nn dp trong xi lanh ph hp vi yu cu trong Bng sau:Cp b tng nn dp trng thi bo ho nc,% khi lng, khng ln hn

SiSi dm

Cao hn B25810

T B15 n B251214

Thp hn B151618

hao mn khi va p ca ct liu ln th nghim trong my Los Angeles, khng ln hn 50% khi lng.

Hm lng ht thoi dt trong ct liu ln khng vt qu 15% i vi b tng cp cao hn B30 v khng vt qu 35 % i vi cp B30 v thp hn.

Tp cht hu c trong si xc nh theo phng php so mu, khng thm hn mu chun

Ct b tng: Dng ct ni hoc ct sng nc ngt. Modul kch c ht khng nh hn 1.6; hm lng bi st khng vt qu 2%; cc yu cu chi tit khc ph hp vi TCVN 7570:2006 Ct xy dng Yu cu k.

Mun ln

Tn cc ch tiuMc theo nhm ct

ToVaNhRt nh

1. M un ln2,5 - 3,32 n 2,51 20,7 - 1

2. Khi lng th tch xp, kg/m3, khng nh hn1400130012001150

3. Ht nh hn 0,14mm, % khi lng ct, khng >10102035

Yu cu k thut:

Tn cc ch tiuMc theo mc b tng

200

1. St, st, cc tp cht khc dng ccKhngKhngKhng

2. Lng ht > 5mm v < 0,15mm, tnh bng % khi lng ct, khng ln hn101010

3. Hm lng mui gc sunfat, sunfit tnh ra SO3, % khi lng ct, khng ln hn111

4. Hm lng mica, tnh bng % khi lng ct, khng ln hn1,511

5. Hm lng bn, bi, st, tnh bng % khi lng ct, khng ln hn533

6. Hm lng tp cht hu c th theo phng php so mu, mu ca dung dch trn ct khng sm hnMu s haiMu s haiMu chun

Phn ng

i vi cp phi dm: theo quy nh k thut thi cng v nghim thu lp cp phi dm s 22-TCN 334 -06 ca B GTVT.

Thnh phn ht ca cp phi dm

Kch c mt sng vung (mm)T l lt sng % theo khi lng

Dmax = 37,5 mmDmax = 25 mmDmax = 19 mm

50

37,5

25

19

9,5

4,75

2,36

0,425

0,075100

95 - 100

-

58 - 78

39 - 59

24 - 39

15 - 30

7 - 19

2 12-

100

79 - 90

67 - 83

49 - 64

34 - 54

25 - 40

12 - 24

2 - 12-

-

1 00

90 - 100

58 - 73

39 - 59

30 - 45

13 - 27

2 - 12

Ch tiu k thut ca dm

TTCh tiu k thutCp phi dmPhng php

th nghim

1 hao mn Los - Angeles ca ct liu (LA), %( 3522 TCN 318 - 04

2Ch s sc chu ti CBR ti cht K ( 98, ngm nc 96 gi, %( 10022 TCN 332 - 06

3Gii hn chy (WL), %( 25AASHTO T89-02 (*)

4Ch s do (IP),%( 6AASHTOT90-02 (*)

5Ch s PP = Ch s do Ip x % lng lt qua sng 0,075 mm( 45

6Hm lng ht thoi dt, %( 15TCVN 7570:2006

7 cht m nn (Kyc), %( 9822 TCN 333-06 (phng php II-D)

i vi vt liu mi

Thnh phn ht: thuc min D cp phi mi: (phng php th nghim theo tiu chun AASHTO-T-27):

C sng (mm)% t l lt sng tch ly

25.0100

9.5060 100

4.7550 90

2.0040 70

0.42520 50

0.0755 20

Quy trnh thi cng mi c th tham kho Quy trnh thi cng v nghim thu lp cp phi dm trong kt cu o ng t 22TCN 334-06, mt s yu cu v thi cng nh sau:

B dy mt lp mi dy khng qu 1518cm (sau khi ln cht). Nu c phng tin lu nng v qua on ri th thy t yu cu m nn th cho php b dy mt lp ti 2025cm.

Cp phi mi phi c ri u v m bo m nh quy nh trong quy nh thi cng nghim thu cp phi dm. m yu cu phi tng i ng u trong tan b phm vi vt liu c ri.

Cp phi mi phi c ri v to hnh bng bin php thi cng c chp thun, khng xut hin phn tng gia cc ct liu th v mn.

Ch c tin hnh m nn khi m vt liu trong khong t -3% n +2% cao hn m ti u (theo AASHTO T180, phng php D).

4.5. cht yu cu

Nn ng (theo Proctor tiu chun) :

i vi 50cm trn cng: m bo cht K0.98.

T 50cm tr xung: cht K 0.95.

Lu ln nn nguyn th t cht K=0.95.

Cp phi dm (m nn bng Proctor ci tin - Qui Trnh AASHTO T 180 phng php D): cht K 0.98.

CHNG V: K HOCH GII PHNG MT BNG V TI NH C

5.1. Phm vi gii phng mt bng

Phm vi gii ta c xc nh da vo quy m ca cng trnh cu v ng u cu cng nh cc hng mc phc v cho cng tc khai thc v bo tr cu. Phm vi gii ta lp trn nguyn tc m bo cc tiu chun k thut trong thit k cng trnh giao thng v khi lng n b, gii ta nh nht. Phm vi gii ta:

+ Pha huyn Hng Dn- Bc Liu: khng n b gii ta mt bng

+ Pha huyn Long M - Hu Giang: do tuyn i vo khu vc rng trm khu dn c nn cn gii phng mt bng phm vi cng trnh v hnh lang an ton ca ng. Khng gii phng mt bng vo phm vi nh m ch phm vi t nng nghip ca khu vc dn c xung quanh cng trnh. Bnh thit k ng u cu v phm vi gii ta.5.2. Cc cn c thc hin gii phng mt bng

Lut t ai ngy 26 thng 11 nm 2003;

Ngh nh 181/2004/N - CP ngy 29/10/2004 ca Chnh ph v thi hnh Lut t ai nm 2003;

Ngh nh s 186/2004/N-CP ngy 05/11/2004 ca Chnh ph quy nh v qun l v bo v kt cu h tng giao thng ng b;

Ngh nh s 197/2004/N -CP ngy 03/12/2004 ca Chnh ph v vic bi thng, h tr v ti nh c khi Nh nc thu hi t;

Ngh nh 69/2009/ND-CP ngy 13/8/2009 ca Chnh ph quy nh b sung v quy hoch s dng t, gi t, thu hi t, bi thng, h tr v ti nh c;

Thng t s 14/2009/TT-BTNMT ngy 01/10/2009 ca B Ti nguyn mi trng quy nh chi tit v bi thng, h tr, ti nh c v trnh t, th tc thu hi t, cho thu t;

Thng t s 57/2010/TT-BTC ngy 16/4/2010 ca B ti chnh quy nh vic lp d ton, s dng v quyt ton kinh ph t chc thc hin bi thng, h tr v ti nh c khi Nh nc thu hi t.

Quyt nh s 23/2014/Q-UBND ngy 20/10/2014 ca UBND tnh Bc Liu v/v ban hnh quy nh v bi thng, h tr v ti nh c khi Nh nc thu hi t trn a bn tnh.

Quyt nh s 14/2010/Q-UBND ngy 21/6/2010 ca UBND tnh Hu Giang v/v sa i, b sung mt s iucaQuyt nh s 14/2010/Q-UBND ngy 21/6/2010 ca UBND tnh Hu Giang ban hnh Quy nh v chnh sch bi thng, h tr v ti nh c khi Nh nc thu hi t trn a bn tnh Hu Giang;

Bn quy hoch pht trin giao thng vn ti, bn quy hoch s dng t khu vc tuyn d n, bn a hnh v cc loi bn khc.

Cc vn bn hng dn cc thng t, ngh nh; bng gi t 2014; bng n gi xy dng mi nh , cng trnh v vt kin trc trn a bn Tnh Bc Liu, Hu Giang; cc chnh sch bi thng, h tr v ti nh c khc ti a phng.CHNG VI: NH GI TC NG MI TRNG S B6.1. Trong giai on xy dng c bn 6.1.1. Nhng tc ng n mi trng

Qu trnh vn chuyn vt t, hng ha n chn cng trnh c th nh hng n mi trng xung quanh nh ting n, kh thi ca cc phng tin vn chuyn; vt liu ri rt trn ng vn chuyn n cng trnh; giao thng cng cng b nh hng; bi sinh ra khi cc phng tin vt liu xung cng trng; gii php thi cng phn mng cng trnh. 6.1.2. Bin php khc phc

khc phc, gim ti thiu nhng nh hng , cn:

- i vi cc phng tin vn chuyn: Tt c cc phng tin vn chuyn ct, , t, thng cha vt liu phi c bng chn khng cho vt liu ri rt trn ng; sau khi a vt liu ln ghe phi ph bt trnh gi xoy bay ct, bi. Phng tin phi bo m t yu cu theo quy nh ca ng kim v kh thi, ting n

- i vi khu vc cng trng: bo m an ton lao ng cng nh gi xoy bay ct, bi nh hng khu vc ln cn th phm vi xy dng phi c che chn k vi chiu cao ti thiu 2,0m bng m b hoc tn thic, khi cng trnh hon thnh phn khung c bn ca cc tng th phi c phng n che chn ton b cng trnh. Sau khi san lp mt bng phn ct phi c ti nc thng xuyn khi tri nng. Khu vc cng trng phi c bo v chung tuyt i khng cho ngi l mt cng nh tr em vo khu vc cng trng nhm trnh cc tai nn c th xy ra.

- X l cht thi: Trang b thng cha rc thu gom rc thi xung quanh c tp trung n thng rc chnh chuyn i theo h thng thu gom rc thi. Nc thi sinh hot s c tp trung v h thm x l ni b sau thot tm ra sng rch, sau ny khi c h thng thot nc ca khu vc th u ni vo.

V phng chng cht n:

- Do khi thi cng s lng cng nhn huy ng n cng trng s tng, ko theo s pht trin t pht cc dch v thi v ti a phng nh: qun cm, ca hng tp phm, hng nc,... khu vc xung quanh cng trng phc v sinh hot ca cng nhn v c th c c cc hin tng tiu cc pht sinh nh: chu n, c bc, nghin ht, trm cp, nh nhau... Nhng hin tng ny s gy ra mt n nh trt t, an ninh ca khu vc lm xo trn cuc sng sinh hot hng ngy ca nhn dn a phng.

- Tnh trng khi, bi v ting n thi cng c th gy kh chu dn n bc xc trong i sng ngi dn a phng cng nh s kh chu v mt an ton cho ngi tham gia giao thng trong nhng gi cao im trong ngy.

- Lc lng nhn cng ln, nhiu la tui, trnh chuyn mn khc nhau dn n thc an ton lao ng nghip v ni ring v an ton lao ng chung khng ng u.

- Cn t chc, hng dn ni quy cng trng ni chung cho cng nhn, t chc m hnh kim sot an ton lao ng ni ring trn cng trng trc khi trin khai thi cng.

- Thc hin nghim chnh cc quy nh v ni dung v an ton phng chng chy n khu vc thi cng.

- T chc che chn, hn ch khng khi, bi, nhin liu xe my gy nhim mi trng mng, m, vn cy... nh hng n an ton giao thng, n mi sinh trn v bn cnh ng b ang khai thc.

- T chc, c nhn thi cng t bin hiu hai u on ng thi cng ghi r tn ca c quan qun l d n hoc ch qun; tn n v thi cng, l trnh thi cng, a ch vn phng cng trng, s in thoi lin h v tn ca ngi ch huy trng cng trng. Ngi ch huy nht thit phi eo ph hiu ring nhn bit; ngi lm vic trn cng trng phi n mc trang phc bo h lao ng theo quy nh.

6.2. Giai on khi d n i vo hot ng

Giai on vn hnh - bn giao, thc hin b tr ng tiu chun cc ni dung m bo khai thc hiu qu nt giao: Vch sn, bin bo, n tn hiu...

Nhn chung nhng tc ng trong giai on ny khng ln nhng l nhng tc ng c tnh lu di, c tnh tch ly nn phi c nhng gii php hn ch nhng tc ng ny: nhim nh v bi, kh thi v ting n pht sinh t cc phng tin tham gia giao thng trn cu.

Tc ng ca d n ln kinh t x hi trong vng mang tch cc nhiu hn, thc y kinh t x hi trong vng.

CHNG VII: TNG MC U T7.1. C s xc nh tng mc u t d nTng mc u t cho D n u t xy dng cu Xo Vt theo hnh thc BOT c lp da trn cc phng n trong h s thit k c s ca d n v cc cn c sau y:- Lut Xy dng s 16/2003/QH11 ngy 26/11/2003 ca Quc Hi Nc Cng ho X hi Ch ngha Vit Nam;

- Lut Thu thu nhp doanh nghip ca Quc Hi kha XII k hp th 3, s 14/2008/QH12 Ngy 03 thng 06 nm 2008;- Ngh nh s 12/2009/N-CP ngy 12/2/2009 ca Chnh ph v vic Qun l d n u t v xy dng cng trnh;

- Ngh nh s 209/2004/N-CP ngy 16/12/2004 ca Chnh ph v vic Qun l cht lng cng trnh xy dng v Ngh nh s 49/2008/N-CP ngy 18/04/2008 ca Chnh ph v vic sa i b sung mt s iu ca Ngh nh 2009/2004/N-CP;

- Ngh nh s 99/2007/N-CP ngy 13/06/2009 ca Chnh ph v qun l chi ph u t xy dng cng trnh;

- Ngh nh s 123/2008/N-CP ngy 08/12/2008 ca Chnh ph quy nh chi tit thi hnh Lut thu gi tr gia tng;

- Ngh nh s 148/2004/N-CP ngy 23/07/2004 sa i, b sung Khon 1 iu 7 Ngh nh s 158/2003/N-CP;

- Thng t s 05/2007/TT-BXD ngy 27/05/2007 ca B Xy dng v vic Hng dn vic lp v qun l chi ph d n u t xy dng cng trnh;

- Thng t s 129/2008/TT-BTC ngy 26/12/2008 hng dn thi hnh Ngh nh s 123/2008/N-CP;

- Thng t 130/2008/TT-BTT ngy 26/12/2008 hng dn thi hnh mt s iu ca Lut Thu Thu Nhp Doanh Nghip.

- Thng t s 02/2007/TTBXD ngy 14/2/2007. Hng dn mt s ni dung v: lp, thm nh, ph duyt d n u t xy dng cng trnh; giy php xy dng v t chc qun l d n u t xy dng cng trnh;

- nh mc chi ph qun l d n v t vn u t xy dng km theo Quyt nh s 957/Q-BXD ngy 29/9/2009 ca B Xy dng;

- Thng t 33-2007-TT/BTC ca B Ti Chnh ngy 09 thng 04 nm 2007 hng dn quyt ton d n hon thnh thuc ngun vn nh nc;

- Thng t s 45/2013/TT-BTC do B Ti chnh ban hnh ngy 25/04/2013 hng dn ch qun l, s dng v trch khu hao ti sn c nh;- Quyt nh 48/2008/Q-TTg ca Th tng Chnh Ph ban hnh ngy 04/04/2008 hng dn chung lp bo co nghin cu kh thi d n s dng vn h tr pht trin chnh thc ca 5 Nhm ngn hng (Ngn hng pht trin Chu , C quan pht trin Php, Ngn hng hp tc Quc t Nht Bn, Ngn hng Ti thit c, Ngn hng Th gii);- Cc vn bn khc ca Nh nc lin quan n lp Tng mc u t, tng d ton v d ton cng trnh;

- H s d ton do Ch u t cung cp.7.2. Tng mc u t

Mc ch ca tng mc u t l tnh ton ton b chi ph u t xy dng D n u t xy dng cu Xo Vt theo hnh thc BOT lm c s lp k hoch, qun l vn u t v xc nh hiu qu u t ca d n.

Tng mc u t ca d n (bao gm li vay trong thi gian xy dng) l 52,456,880,000 ng (Nm mi hai t, bn trm nm mi su triu, tm trm tm mi ngn ng).

Ngoi ra, d n cn xy dng thm nh iu hnh v trm thu ph c s dng t chi ph d phng vi gi tr xy dng l 2,500,000,000 ng (Km theo h s thit k v bo co kinh t k thut cc hng mc).

STTKhon mc chi phK hiuCch tnhThnh tin trc thuThu VATThnh tin sau thu

IChi ph xy dngGxd39,144,755,8183,914,475,58243,059,231,400

Chi ph xy dng39,144,755,8183,914,475,58243,059,231,400

IIChi ph qun l d nGqlda(Gtb) x 1.785%698,733,89169,873,389768,607,280

IIIChi ph t vn u t xy dngGtv1,628,739,029162,873,9031,791,612,932

1Chi ph kho st a hnh300,184,01730,018,402330,202,419

2Chi ph thit k k thut(Gtb) x 1.072%419,613,78241,961,378461,575,160

3Chi ph thm tra thit k(Gtb) x 0.1%39,144,7563,914,47643,059,232

7Chi ph thm tra d ton(Gxd) x 0.095%37,187,5183,718,75240,906,270

8Chi ph lp HSMT v nh gi HSDT xy lp(Gtb) x 0.142%55,585,5535,558,55561,144,108

9Chi ph gim st thi cng xy dng(Gtb) x 1.985%777,023,40377,702,340854,725,743

IVChi ph khcGk1,204,389,388120,438,9391,324,828,327

1L ph thm nh d n u t(Gtb) x 0.183%81,812,5408,181,25489,993,794

2Chi ph bo him cng trnh(Gtb) x 0.01%391,447,55839,144,756430,592,314

Chi ph thm tra ph duyt, quyt ton81,812,5408,181,25489,993,794

Chi ph kim ton131,134,93213,113,493144,248,425

Chi ph m bo giao thng ng thu272,727,27327,272,727300,000,000

Chi ph di di bn ph tm245,454,54524,545,455270,000,000

VID phng phGDP4,104,787,910410,478,7914,515,266,701

1D phng cho yu t khi lng pht sinhGdp1(Gtb+Gqlda+Gtv+Gk) x 5%2,052,393,955205,239,3952,257,633,350

2D phng ph cho yu t trt giGdp2(Gtb+Gqlda+Gtv+Gk) x 3%2,052,393,955205,239,3952,257,633,350

VIIChi ph n b gii phng mt bng500,000,00050,000,000550,000,000

TNG47,281,406,0364,728,140,60452,009,546,640

Li vay trong thi gian xy dng447,333,333

Tng cng (lm trn)52,456,880,000

7.3. K hoch vn u t tng ng vi tin 7.3.1. Tin u t

Giai on u t xy dng bt u thng 5 nm 2015 n thng 12 nm 2015. Thi gian u t xy dng 8 thng, d kin hon thnh vo cui thng 12 nm 2015. Bao gm cc hng mc:

+ Kho st thit k:

thng 6/2013 => 12/2013

+ Thm nh, ph duyt:

thng 1/2014 => 10/2014+ m phn k HBOT:

thng 11/2014 => 4/2015+ T chc thi cng xy lp hon thnh:thng 5/2015 =>12/2015

+ Bt u khai thc s dng:

thng 01/2016

7.3.2. Tin s dng vn

v: 1,000 ngTTThi gianNm 2014Nm 2015Tng

IChi ph xy dng43,059,23143,059,231

IIChi ph qun l d n768,607768,607

IIIChi ph t vn u t xy dng-

1Chi ph kho st a hnh330,202330,202

2Chi ph thit k k thut461,575461,575

3Chi ph thm tra thit k43,05943,059

4Chi ph thm tra d ton40,90640,906

5Chi ph lp HSMT v nh gi HSDT xy lp61,14461,144

6Chi ph gim st thi cng xy dng854,726854,726

IVChi ph khc-

1L ph thm nh d n u t89,99489,994

2Chi ph bo him cng trnh430,592430,592

3Chi ph thm tra ph duyt, quyt ton89,99489,994

4Chi ph kim ton144,248144,248

5Chi ph m bo giao thng ng thu300,000300,000

6Chi ph di di bn ph tm270,000270,000

VID phng ph-

1D phng cho yu t khi lng pht sinh2,257,6332,257,633

2D phng ph cho yu t trt gi2,257,6332,257,633

VIIChi ph n b gii phng mt bng550,000550,000

Li vay trong thi gian xy dng406,667406,667

Tng1,515,73750,900,47652,416,213

Vi mc tng vn u t (bao gm li vay) l 52,416,213,000 ng, d n bt u trin khai xy dng v hon thnh trong nm 2015.

7.3.3. Ngun vn thc hin d n

Ngun vn ny s c vay t Qu u t Pht trin tnh Bc Liu v ngun vn ca ch u t. Trong vn vay l 24,400,000,000 ng chim 47% v vn ch s hu l 28,016,213,000 ng chim 53%.

Ngun vn vay 24,400,000,000 ng (Hai mi bn t bn trm ng) s c vay trong thi gian l 15 nm, trong n hn 1 nm xy dng ch tr li vay theo s d n u k, qua nm 2016 khi d n hon thnh, ch u t c ngun thu bt u tr vn gc v li vay.7.3.4. Phng n hon tr li v vn vayNgun vn vay c vay trong trong thi gian 15 nm vi li sut 10%/nm. Thi gian n hn tr vn gc 1 nm v thi gian tr n l 14 nm.

T l vay47%

S tin vay24,400,000ngn ng

Thi hn vay15nm

n hn1nm

Li vay10%/nm

Thi hn tr n14nm

Tin rt vn vay v tr li vay c trnh by bng sau:

v: 1,000 ng

Nm2015201620172018

D n u k024,400,00022,657,14320,914,286

Vay trong k24,400,000

Li pht sinh trong k406,6672,440,0002,265,7142,091,429

Tr n:406,6674,182,8574,008,5713,834,286

+ Li406,6672,440,0002,265,7142,091,429

+Vn gc-1,742,8571,742,8571,742,857

D n cui k24,400,00022,657,14320,914,28619,171,429

Nm2019202020212022

D n u k19,171,42917,428,57115,685,71413,942,857

Vay trong k

Li pht sinh trong k1,917,1431,742,8571,568,5711,394,286

Tr n:3,660,0003,485,7143,311,4293,137,143

+ Li1,917,1431,742,8571,568,5711,394,286

+Vn gc1,742,8571,742,8571,742,8571,742,857

D n cui k17,428,57115,685,71413,942,85712,200,000

Nm2023202420252026

D n u k12,200,00010,457,1438,714,2866,971,429

Vay trong k

Li pht sinh trong k1,220,0001,045,714871,429697,143

Tr n:2,962,8572,788,5712,614,2862,440,000

+ Li1,220,0001,045,714871,429697,143

+Vn gc1,742,8571,742,8571,742,8571,742,857

D n cui k10,457,1438,714,2866,971,4295,228,571

Nm202720282029

D n u k5,228,5713,485,7141,742,857

Vay trong k

Li pht sinh trong k522,857348,571174,286

Tr n:2,265,7142,091,4291,917,143

+ Li522,857348,571174,286

+Vn gc1,742,8571,742,8571,742,857

D n cui k3,485,7141,742,857-

CHNG VIII: QUN L THC HIN V VN HNH D N

8.1. Cc d liu chnh v c quan thc hin d n 8.1.1. V th ch

C quan thc hin d n l Cng ty C phn u t Xy dng BOT & BT Min Nam cng l ch u t d n. Cng ty c thnh lp t nm 2012 v hot ng theo lut doanh nghip, chc nng chnh l kho st thit k, t vn u t v thi cng cc cng trnh giao thng, cng trnh dn dng..... i ng cn b k thut ca cng ty c tp hp t cc k s c nhiu kinh nghim, chuyn mn cao, nhit quyt v sng to.

C cu t chc ca cng ty bao gm Ban gim c v 05 b phn trc thuc: phng k hoch d n, phng k thut gim st, phng hnh chnh nhn s, phng k ton ti v v i thi cng xy lp vi tng s nhn s trn 20 ngi. Chc nng, nhim v ca cc phng ban c th nh sau:

- Ban gim c gm: Gim c ph trch qun l iu hnh chung, cc ph gim c chuyn trch gm ph gim c ph trch nhn s, ph gim c ph trch ti chnh v ph gim c ph trch k thut.- Phng K hoch d n c nhim v t vn kho st thit k, lp d n u t, lp k hoch thc hin v qun l thc hin cc d n do mnh lm ch u t, ngoi ra thc hin chc nng t vn qun l cc d n thuc ngun vn nh nc hoc vn khc.

- Phng k thut gim st c chc nng t chc la chn nh thu, theo di qun l cht lng, khi lng v tin thi cng xy lp, x l k thut ti cng trng, lp cc bo co kim tra nh k.

- Phng hnh chnh - nhn s thc hin nhim v theo di, qun l v nhn s v cc ch phc li, khen thng, o to.

- Phng k ton ti v thc hin nhim v theo di, qun l v k ton ti chnh, k ton tin lng, k ton thanh ton.8.1.2. Kinh nghim thc hin cc d n tng t

Vi b dy kinh nghim v lnh vc t vn xy dng v u t cu treo theo hnh thc BOT, cng ty tng bc khng nh mnh, nng cao uy tn trn thng trng v c tng nhiu bng khen ca UBND X, Huyn trong s nghip pht trin kinh t x hi a phng.Ch vi gn 03 nm thnh lp nhng cng ty thc hin nhiu d n u t vi quy m ln, cc d n tiu biu ca cng ty c th hin qua bng tm tt sau:

STTTn d na imQuy m

(t ng)Khi lng thc hinGhi ch

01Cu treo Ci TmX Tn Nht Huyn Bnh Chnh-HCM5.4 tHon thnh 100%

22Cu treo Thanh NinHuyn Bnh Chnh-HCM3 tHon thnh 100%

33Cu treo Trn Vn ThiHuyn Trn Vn Thi, C Mau14.2 tHon thnh 100%

44Cu Vm XngHuyn Phong in Cn Th42 tang trnh thit k c s

8.2. Qun l thc hin d n 8.2.1. T chc qun l thc hin d n

Gm cc vic lp k hoch, t chc v qun l, gim st kim sot qu trnh pht trin ca d n nhm m bo cho d n hon thnh ng thi gian, trong phm vi k hoch c duyt, m bo cht lng, t c mc tiu c th ca d n v cc mc tiu ra. D n l tng th nhng chnh sch, hot ng v chi ph lin quan vi nhau c thit k nhm t c nhng mc tiu nht nh trong mt thi gian nht nh.

Cc cng vic chnh ca qun l d n:

- Chc nng lp k hoch, bao gm vic xc nh mc tiu, cng vic v d tnh ngun lc cn thit thc hin d n.

- Chc nng t chc, tin hnh phn phi ngun lc gm: tin, lao ng, trang thit b, vic iu phi v qun l thi gian.

- Chc nng lnh o.

- Chc nng kim sot, gim st qu trnh, theo di kim tra tin d n, phn tch tnh hnh thc hin, tng hp, nh gi, bo co kt qu thc hin v xut cc gii php gii quyt cc kh khn trong qu trnh thc hin d n, quyt nh x l cc vn v k thut.8.2.2. Gim st cng trnh

Bao gm cc ni dung sau:

- Kim tra cht lng, khi lng, tin thi cng xy lp

- Kim tra nng lc v nhn s, thit b, phng th nghim hp chun.

- Kim tra an ton lao ng, v sinh mi trng.

- Kim tra gim st bin php thi cng ca nh thu.

- Ghi nhn kt qu kim tra gim st nh thu thi cng trn cng trnh.

- Tham gia nghim thu, phi hp vi cc bn lin quan gii quyt cc vn k thut, pht sinh trong qu trnh thi cng xy lp.

- Xc nhn bn v hon cng, khi lng quyt ton.8.2.3. Qun l v nhn s cho d n

- Phng K hoch - d n, phng K thut gim st c nhim v lp k hoch, c ch phi hp trong cng tc qun l d n, gim st thi cng, xut cc cn b k thut c nng lc chuyn mn ph hp b nhim phn cng nhim v qun l d n, gim st k thut theo ng trnh t.

- Trn c s xut ca phng k hoch v k thut, ch u t quyt nh thnh lp Ban qun l d n, b nhim nhn s qun l, gim st thi cng hoc c th thc hin thu t vn qun l d n, gim st thi cng xy lp mt phn hay ton b d n.

- Phng K ton - ti v c chc nng kim sot ti chinh, lp k hoch vn v cung cp vn kp thi cho d n.Sau khi cng trnh xy dng hon thnh a vo khai thc s dng ch u t trc tip khai thc qun l d n:

1-T chc thu ph: Chng ti d kin m hnh qun l iu hnh, t chc hot ng thu ph ca d n nh sau:

Pha x Lng Tm, huyn Long M xy dng 01 nh iu hnh v 01 trm thu ph.2-B my qun l: Cn c iu 49 - Thnh lp v t chc qun l ca Doanh nghip d n trong Thng t s 03/2011/TT-BKHT ca B K hoch v u t: Hng dn thc hin mt s quy nh ca Ngh nh s 108/2009/N-CP ngy 27/11/2009 ca Chnh ph v u t theo hnh thc Hp ng BOT, Hp ng BTO v Hp ng BT, Ch u t - Cng ty C phn u t Xy dng BOT & BT Min Nam s thc hin th tc ng k doanh nghip thnh lp doanh nghip d n mi, tc cng ty con ca chnh ch u t theo quy nh ca php lut v doanh nghip. Do , cng ty con ny s t cch php l qun l d n.8.2.4. Vai tr, nhim v ca cc nh thu thi cng xy lp

Nh thu c vai tr rt ln n cht lng sn phm xy dng. Vai tr v nhim v ca cc nh thu c quy nh rt r trong hp ng thi cng xy dng gia nh thu v ch u t, bao gm nhng vn chnh:

- Thi cng cng trnh theo h s thit k c ph duyt; nh c m t trong HSYC ca ch u t, HSX ca nh thu;

- Nh thu phi thi cng v hon thnh cng trnh theo hp ng v ch dn ca ch u t hoc t vn gim st; - Tun th theo quy nh v cc vn bn hng dn v qun l cht lng hin hnh;

- m bo cc yu cu v k thut, ng thit k c duyt, m bo s bn vng v chnh xc ca cc kt cu xy dng theo quy chun, tiu chun xy dng Vit Nam;

- Chu trch nhim trc php lut v trc ch u t v cc ni dung cam kt trong hp ng, bao gm c s lng, cht lng, tnh chnh xc ca sn phm, thi gian thc hin hp ng, thi gian bo hnh cht lng sn phm ca mnh.

- m bo an ton lao ng, v sinh mi trng v an ninh trt t trong thi gian thi cng xy dng;- Thit lp cc quy trnh, h thng qun l, bo co y nhm kim sot cht lng v tin ca cng vic mt cch cht ch;

- Nh thu phi chu trch nhim v tnh y , n nh v an ton ca mi thao tc trn cng trng v mi bin php thi cng.

- Lp bng tin thi cng chi tit v cc bng iu chnh tin trong tng giai on thi cng (nu c) trnh ch u t v t vn gim st ph duyt;

- T chc nghim thu cng trnh, lp h s hon cng v h s quyt ton theo quy nh hin hnh.

8.2.5. Vai tr ca t vn

c c mt sn phm tt, i hi ngoi yu cu c mt ch u t tt, cc nh thu thi cng tt th bn cnh cn phi c cc nh thu t vn tt.

Vai tr ca cc nh thu t vn ht sc quan trng v c nh hng ln n cht lng, tin thc hin d n.

Cc nh thu t vn phi m bo iu kin v nng lc chuyn mn, nng lc kinh nghim thc hin cc cng vic theo ni dung t vn k kt vi ch u t. Cc nh thu t vn c th l: T vn lp d n, t vn kho st thit k bn v thi cng Tng d ton, t vn thm tra thit k, t vn la chn nh thu thi cng xy dng, t vn gim st thi cng cng trnh, t vn kim nh, kim tra chng nhn s ph hp v an ton chu lc hoc c th l t vn qun l iu hnh d n.

Cc nh thu t vn chu trch nhim thc hin tt v ng chc nng, nhim v ca mnh trn c s cc vn bn php lut quy nh hng dn thc hin ca nh nc. Cc nh thu t vn chu trch nhim trc ch u t v trc php lut v hot ng ca mnh.8.2.6. Vai tr ca cc t chc c lin quan thc hin d n

- UBND tnh Bc Liu quy hoch chi tit xy dng v quy hoch k hoch s dng t cho a phng to qu t xy dng d n.

- S KH & T tnh Bc liu l c quan u mi phi hp vi cc s, ngnh, n v chc nng c lin quan hng dn ch u t thc hin cc bc ca d n theo ng trnh t php lut hin hnh.

- S Giao thng tnh Bc Liu hng dn ch u t thc hin: Lp, ph duyt quy hoch chi tit; lp, ph duyt d n u t;

- S Ti nguyn v mi trng tnh Bc Liu hng dn UBND huyn c d n v ch u t thc hin thu hi t, giao t theo ng quy nh ca php lut hin hnh.

8.2.7. C ch phi hp

Cc c quan ban ngnh c lin quan, ch u t cng nh cc t chc t vn cn xy dng c ch phi hp thc hin gp phn y nhanh tin v cht lng thc hin d n, tham gia t vn, ng gp cc kin chuyn ngnh trong phm vi quyn hn c giao, hng dn v h tr nh u t v cc vn bn hng dn, th tc hnh chnh c lin quan trong qu trnh chun b u t v thc hin u t.

8.3. K hoch thc hin d n8.3.1. Tin thc hin

- K hoch d kin:+ Kho st thit k:

thng 6/2013 => 12/2013

+ Thm nh, ph duyt:

thng 1/2014 => 10/2014+ m phn k HBOT:

thng 11/2014 => 4/2015+ T chc thi cng xy lp hon thnh:thng 5/2015 =>12/2015

+ Bt u khai thc s dng:

thng 01/2016

8.3.2. Phng n t chc trin khai d n

- Sau khi d n c duyt, Nh u t tin hnh m phn, k kt hp ng.

- Nh u t lp th tc xin cp giy chng nhn u t.

- Nh u t t chc u thu, ch nh thu hoc t thc hin theo quy nh.

- Nh u t t chc trin khai thi cng.8.4. Qun l ti chnh

8.4.1. Chun b k hoch ti chnhNhu cu vn ca d n c xc t 02 ngun chnh l:

+ Vn ch s hu : 28,016,213,000 ng+ Vn vay li t qu u t Pht trin tnh Bc Liu: 24.400.000.000 ngVic qun l ti chnh bao gm vic lp cc k hoch ti chnh di hn v ngn hn, ng thi qun l c hiu qu vn hot ng thc ca cng ty. y l cng vic rt quan trng i vi doanh nghip bi v n nh hng n cch thc v phng thc m nh qun l thu ht vn u t, duy