lower likhu hydropower project (28.1mw) · 2019-10-24 · bhojraj paudel . lower likhu hydropower...

SWET GANGA HYDROPOWER & CONSTRUCTION LIMITED Sankha Park, Dhumbarahi, G.P.O.Box 19737, Kathmandu Nepal Site Office: Sirise, Ramechhap

SANIMA HYDRO AND ENGINEERING (P.) LIMITED.

Shankha Park, Dhumbarahi, Kathmandu M.C, Ward no.: 04, Nepal

G. P.O. Box. 19737, Kathmandu, Nepal

Tel: (977-1) 4372828/ 4373030/ 4015788, Fax: (977-1) 4015799

Email: [email protected], Web: www.sanimaengineering.com

LOWER LIKHU HYDROPOWER PROJECT (28.1MW)

MONTHLY PROGRESS REPORT # 17

SEPTEMBER, 2019

SWET GANGA HYDROPOWER & CONSTRUCTION LIMITED Sankha Park, Dhumbarahi, G.P.O.Box 19737, Kathmandu Nepal Site Office: Sirise, Ramechhap

SANIMA HYDRO AND ENGINEERING (P.) LIMITED.

Shankha Park, Dhumbarahi, Kathmandu M.C, Ward no.: 04, Nepal

G. P.O. Box. 19737, Kathmandu, Nepal

Tel: (977-1) 4372828/ 4373030/ 4015788, Fax: (977-1) 4015799

Email: [email protected], Web: www.sanimaengineering.com

LOWER LIKHU HYDROPOWER PROJECT (28.1 MW)

MONTHLY PROGRESS REPORT # 17

SEPTEMBER, 2019

Rev: _________________________________________________________________

Prepared By:

Signature Date

Aashish Dhakal

Checked By:

Sudip Chapagain

Approved By:

Bhojraj Paudel

Lower Likhu Hydropower Project (28.1 MW) Monthly Progress Report, September 2019

i Sanima Hydro and Engineering Pvt. Ltd.

Table of Contents 1. PROJECT OVERVIEW AND INSTITUTIONAL ARRANGEMENT ............................... 1

2. KEY DATES .................................................................................................................. 1

3. CONTRACT PACKAGES AND IMPLEMENTATION ................................................... 2

4. FINANCING .................................................................................................................. 2

5. RESOURCES AT SITE ................................................................................................. 2

6. CIVIL CONSTRUCTION WORK PROGRESS .............................................................. 6

6. 1 HEADWORKS ...................................................................................................................... 6

6.2 TUNNEL ................................................................................................................................ 9

6.2.1.HRT INLET PORTAL ......................................................................................................... 9

6.2.2.SETI OUTLET PORTAL ................................................................................................... 10

6.2.3. SETI INLET PORTAL ...................................................................................................... 11

6.2.4. POKU OUTLET PORTAL ................................................................................................ 12

6.2.5. POKU INLET PORTAL .................................................................................................... 13

6.2.6. HRT OUTLET PORTAL .................................................................................................. 14

6.3. SURGE SHAFT AND CONNECTING TUNNEL ................................................................ 16

6.4. PENSTOCK ........................................................................................................................ 16

6.5. POWERHOUSE ................................................................................................................. 18

6.6. TAILRACE .......................................................................................................................... 18

7. HYDRO-MECHANICAL WORKS PROGRESS .......................................................... 19

8. ELECTRICAL WORKS ............................................................................................... 21

9. POWERHOUSE CAMP .............................................................................................. 21

10. SOCIAL AND PUBLIC .............................................................................................. 23

11. ENVIRONMENT, HEALTH AND SAFETY ............................................................... 24

12. EQUIPMENT BREAKDOWN .................................................................................... 25

13. VISITORS OF THE MONTH ..................................................................................... 25

14. PHOTOS ................................................................................................................... 27

15. PROGRESS CHART ................................................................................................ 31


ii Sanima Hydro and Engineering Pvt. Ltd.

List of Figures

Figure 1: Construction activities in intake and undersluice .............................................................. 7

Figure 2: Divide wall panel 1 and 2 .................................................................................................. 7

Figure 3: Hard stone lining at undersluice apron ............................................................................. 8

Figure 4: Settling basin and Sediment Flushing area ...................................................................... 8

Figure 5: Tunnel from Face-01 (Main inlet portal) ............................................................................ 9

Figure 6: Tunnel from Face-02 (Seti Outlet portal) ........................................................................ 10

Figure 7: Tunnel from Face-03 (Seti inlet portal) ........................................................................... 11

Figure 8: Tunnel from Face-04 (Poku outlet portal) ....................................................................... 12

Figure 9: Tunnel from Face-05 (Poku inlet portal) ......................................................................... 13

Figure 10: Tunnel from Face-06 (Main outlet portal)...................................................................... 14

Figure 11: Surge shaft from top ..................................................................................................... 16

Figure 12: Slope protection at penstock alignment ........................................................................ 17

Figure 13: Rebar laying for concrete casing around irrigation pipe across penstock alignment .... 17

Figure 14: View of tailrace culvert panel 03 before concreting ...................................................... 18

Figure 15: Tailrace culvert panel 3 ................................................................................................. 19

Figure 16: Rolled MS pipes at HM yard ......................................................................................... 20

Figure 17: Installation of gravel flushing bellmouth ........................................................................ 20

Figure 18: Over and under Voltage protection scheme ................................................................. 21

Figure 19: Powerhouse staff quarter (Type: Block F) .................................................................... 22

Figure 20: View of Powerhouse Camp .......................................................................................... 22

Figure 21: Billiards House at Powerhouse Camp .......................................................................... 23

Figure 22: Restrictive signage at tunnel face ................................................................................. 24

Figure 23: Emergency assembly point at Seti ............................................................................... 25

Figure 24: LLHP and SHEPL team with Geological consultant Mr. Subash Sunuwar ................... 26

Figure 25: LLHP team with members from COWI and DIF ............................................................ 26

Figure 26: Installation of gravel flushing pipe (Left) and Outlet of gravel flushing (Right) .............. 27

Figure 27: Calibration of aggregate for concreting at site (left) and newly unloaded rebar (right) . 27

Figure 28: Masonry at settling basin (left) gravel flushing stop-log installation (right) .................... 27

Figure 29: Hard stone cutting at Headworks (left) and storage (right) ........................................... 28

Figure 30: Headworks construction ............................................................................................... 28

Figure 31: Crusher at Headworks (left) and material stock (right) ................................................. 28

Figure 32: Irrigation canal across Penstock alignment (left) and concrete casing (right) ............... 29

Figure 33: Main inlet tunnel (Left) and Safety meeting (Right) ....................................................... 29

Figure 34: Traffic signage at Sirise bazaar .................................................................................... 29

Figure 35: Safety signage at access road (left) and speed limit sign (right)................................... 30


iii Sanima Hydro and Engineering Pvt. Ltd.

Figure 36: Wire net fence for electrical panel board at Powerhouse (left) and LOTO for safety (right)

....................................................................................................................................................... 30

Figure 37: Fence posts around Powerhouse staff quarter (left) and chain link fencing (right) ....... 30

Figure 38: Tailrace culvert panel 6 to 10 (left) and safety signs at surge shaft area (right) ........... 31

Figure 39: Plate rolling machine at HM yard (Left) and shotcrete at penstock slope area (right) .. 31

List of Tables

Table 1: Human Resource at site from the Employer’s side ............................................................ 2

Table 2: Human Resource at site from Civil Contractor’s side ......................................................... 3

Table 3: Human Resource at site from Hydro-Mechanical Contractor’s side .................................. 3

Table 4: Equipment mobilized by civil contractor ............................................................................. 4

Table 5: Equipment mobilized by Hydro-Mechanical contractor ...................................................... 4

Table 6: Construction material stored by Civil contractor ................................................................. 5

Table 7: Progress summary of Headworks ...................................................................................... 6

Table 8: Overall Tunnel Excavation Progress ................................................................................ 15

Table 9: Detail of concrete quantity at tailrace ............................................................................... 18

Swet Ganga Hydropower & Construction Limited Lower Likhu Hydropower Project (28.1 MW) Monthly Progress Report, September, 2019

1 Sanima Hydro and Engineering Pvt. Ltd.

1. PROJECT OVERVIEW AND INSTITUTIONAL ARRANGEMENT

Lower Likhu Hydropower Project (LLHP) is a run-of-river (RoR) hydropower project which utilizes Gross Head 118 m and Design Discharge of 29.75 m3/s resulting in to an installed capacity of 28.1 MW. The entire project area (Headworks to Powerhouse) is located in LikhuTamakoshi Rural Municipality (Saipu-2 and Bijulikot-4) of Ramechhap, Province no.3 of Nepal. Geographically, the project lies between Longitudes 86°15’38” E to 86°13’17” E and Latitudes 27°25’56” N to 27°22’47”N. Geologically, the project area belongs to the Lesser Himalayas.

The project’s headworks area is accessible via two different road routes. One from Kathmandu-Dhulikhel-Charikot-Nayapul-Dhobi-Sirise (170 km) and another from Kathmandu-Dhulikhel-Khurkot-Manthali-Dhobi-Sirise (227 km). Manthali Bazar is the nearest city which is about 45 km from the proposed headworks area.

Construction Management:

a) The Employer/Owner Swet Ganga Hydropower & Construction Ltd. (SGHCL)

b) The Engineer/ Consultant Sanima Hydro and Engineering PVT. Ltd. (SHEPL)

c) The Contractor High Himalaya Hydro-Bavari Construction J.V.

(Civil Construction Works)

d) The Contractor Machhapuchhre Metal & Machinery Works (P.)Ltd. (3MW) (Hydro-mechanical

Works) e) The Contractor Asia Pacific Power-Tech Co. Ltd., China

(Electro-mechanical Works)

f) The Contractor Tender Evaluation completed

(Transmission-line Works)

2. KEY DATES

Description Date

Grid connection agreement 12th Chaitra 2072 (25thMarch 2016)

Generation License issued by Department Electricity Development (DoED), Ministry of Energy (MoEn), Government of Nepal (GoN)

2nd Baisakh 2073 (14thApril 2016)

The license period of the project is from

28th Chaitra 2072 to 27thChaitra 2107 B. S.

Power Purchase Agreement (PPA) with Nepal Electricity Authority (NEA)

14th Poush 2073 (29thDec 2016)

Letter of Acceptance for civil works 7thFebruary 2018

Financial Closure 22nd February 2018

Contract of main Civil works 5thChaitra 2074 (19thMarch 2018)

Contract of Hydro-mechanical 9thPoush 2075 (24thDec 2018)

RCOD 1stDecember 2021

Electro-Mechanical Contract Award 18th Bhadra 2076 (4th September 2019)



3. CONTRACT PACKAGES AND IMPLEMENTATION

a) Main civil construction works Contract Package 1

b) Hydro-mechanical and Penstock Contract Package 2

c) Equipment (electromechanical) Contract Package 3

d) Power evacuation Transmission Contract Package 4

e) Pre-construction works, camp, facilities, social environment Direct by the Em-ployer

4. FINANCING

a) Equity Promoters 25% of the total Project Cost

b) Debt Consortium of Banks 75% of the total Project Cost (Lead Bank-Laxmi Bank Ltd, Member Banks: Kumari Bank Ltd., Hy-droelectricity Investment and Development Company Ltd. Century Commercial Bank Ltd., and Prabhu Bank Ltd.)

5. RESOURCES AT SITE

From Employer’s side:

Table 1: Human Resource at site from the Employer’s side

Description Number Description Number

Acting Resident Engineer 1 Social and Environment officer 2

Assistant Manager (Environment) 1 Social Mobilizer 3

Safety Officer 1 Survey Helper 1

Geologist 3 Office Assistant 2

Civil Engineer 5 Driver 3

Electrical Engineer 1 Supervisor 8

Geomatics Engineer 1 Cook 2

Admin/Account 3

Sub-Engineer(Overseer) 3

Surveyor 1

Assistant Sub Engineer(Sub Overseer) 1 Total: 42



From Civil Contractor’s side:

Table 2: Human Resource at site from Civil Contractor’s side

Description Number

Project Manager 1

Construction Manager 1

Tunnel Manager 1

Plant Manager 1

Engineer 14

Geologist 3

Overseer/Sub-overseer 10

Surveyor 4

Supervisor/Foreman 5

Lab Technician 3

Skilled Worker 12

Unskilled labours (Including crusher) 40

Operator/Driver 37

Helpers 10

Mechanical/Electrical staff 48

Office/store/Purchase 31

Security guards 20

Office Assistant 1

Cook 9

Peon (ktm) 3

Other Workers

Powerhouse rock crusher 41

Headworks and rock crusher 184

HRT inlet portal 18

Poku area 43

HRT outlet and surge shaft 31

Seti portals 33

Total 604

From Hydro-Mechanical Contractor’s side:

Table 3: Human Resource at site from Hydro-Mechanical Contractor’s side

Description Number

Engineer 1

Supervisor 2

Foreman 1

Welder 5

Electrician 1

Fitter 5

Helper 7

Store in-charge 1

Hydra Operator 1

Total 24



Equipment mobilized by Civil Contractor at site

Table 4: Equipment mobilized by civil contractor

Equipment mobilized by Hydro-Mechanical Contractor at site

Table 5: Equipment mobilized by Hydro-Mechanical contractor

S.N Equipment Number

1 Hydraulic Crane 1

2 Rolling machine 1

3 Pug machine 1

4 Tractor 1

S.N Equipment Name Number S.N Equipment Name Num-ber

1 Generator 62.5KVA 2 26 Pusher leg 43

2 Generator 30KVA 1 27 Blaster (Exploder) 6

3 Generator 125KVA 2 28 Siren 6

4 Generator 25 KVA 1 29 Core Cutting machine 2

5 Generator 160 KVA 3 30 Hand drilling machine 3

6 Generator 250 KVA 3 31 Air compressor 9

7 Air Receiver tank 6 32 Vibrators 1

8 Ohm meter 6 33 Water pump 10” 2

9 Excavator 7 34 Water pump 12” 1

10 Dum Truck 9 35 Water Pump (1HP) 9

11 Transportation Truck 1 36 Grinding machine(4”) 6

12 Backhoe Loader (JCB) 3 37 Grinding machine(7”) 1

13 Wheeled loader 5 38 Welding machine(single/3-phase)

9

14 Tractor 10 39 Ply cutter machine (8”/7”) 1

15 Light vehicle 6 40 Prism with tripod set 5

16 Motor bike 7 41 Leveling staff (5m) 4

17 Concrete mixer(including lab) 10 42 Total station (Topcon GM-105) with tripod set

3

18 Grouting pump 6 43 Auto level with tripod set 3

19 Concrete pump 2 44 Shot Crete machine PZ5 6

20 Jackhammer 48 45 Compressive strength test machine

1

21 Blower fan set 6 43 Lubricator 43

22 Pull out test machine 1 47 Diesel Tank 16000Ltr 3

23 Shotcrete Robot (Jacon) 1 48 Muck loader on wheel base 2

24 Shotcrete Robot (Cifa) 1 49 Transit mixer 4

25 Concrete Batching Plant 1



Construction materials stored by Civil Contractor at site:

Table 6: Construction material stored by Civil contractor

Materials Unit Balance Qty

Diesel Litres 4,868.92

Rebar (25mm) Kg 10,912.5

Rebar (20mm) Kg 32,959.13

Rebar (16mm) Kg 6,473.19

Rebar (12mm) Kg 28,299.5

Rebar (10mm) Kg 0

Cement Bags 1,125

Micro silica Kg 1,099

Steel Fiber Kg 0

Accelerator liquid Kg 2,280

Pneumatic Oil Litres 1,014

Plasticizer Kg 66.94

Rock bolt 20mm*2m Nos. 0



Steel rib Set 7

Sank rod 5’ Nos. 4






Wire mesh 100*100*4mm Roll 8



6. CIVIL CONSTRUCTION WORK PROGRESS

6. 1 HEADWORKS

Total 7 number of upstream floodwall panels and 13 number of downstream floodwall

panels have been completed. Final lift concreting is remaining in upstream floodwall

panel 2 and 5 (2m height) and downstream floodwall panel 1 and 2 (1m height).

Construction of undersluice has been completed up to level of 738.8m.

Construction of divide wall panel 1 and 2 has been completed.

Construction of divide wall panel 3 has been completed up to level of 735m.

Backfilling behind the floodwalls has been going on.

Hard stone lining in upstream apron panel 1 and 2 of undersluice has been going on.

Concreting at panel no 1 of gravel flushing has been completed.

Concreting at base of intake has been completed up to the level of 735.00 m.

The base slab of Sediment flushing panel no 10 has been completed.

Excavation for settling basin has been ongoing. Construction of stone masonry wall has

been started from riverside.

Construction of upstream cutoff wall 1 and downstream cutoff wall 1 and 2: Panel 1 and

2 completed.

Construction of stilling basin panel no. 1 and 2 completed.

Construction of weir panel no.1 upto level 734m completed.

Construction of Apron panel no. 1 and 2 completed.

Construction of Gravel flushing panel no.1 completed.

Table 7: Progress summary of Headworks

S.N Description Units Till

August, 2019

August,2019 September,2019 Total

Quantity

1. C15 concrete m3 274.789 82.171 3.5 278.289

2. C25 concrete m3 7179.24 1066.8 305.69 7484.93

3. Re-bar ton 550 86 17.237 567.237



Figure 1: Construction activities in intake and undersluice

Figure 2: Divide wall panel 1 and 2



Figure 3: Hard stone lining at undersluice apron

Figure 4: Settling basin and Sediment Flushing area



6.2 TUNNEL

6.2.1.HRT INLET PORTAL

The total excavated length from Face 1 (Main inlet portal) is 257.80 m. The geology of the tunnel comprises of thinly foliated, dark grey to bluish grey colour, slightly weathered to fresh, undulated phyllite with partings and subordinates of quartzite and Meta-sandstones. Clay coatings are present along discontinuities. The class of rock is support type V.

Figure 5: Tunnel from Face-01 (Main inlet portal)

Progress Analysis of Main Inlet Tunnel

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Progress in month

Main inlet (Face 1)Monthly progress (m)

Target



6.2.2.SETI OUTLET PORTAL

The total excavation from Face 2 (Seti outlet portal) is 409.00m. The geology of the tunnel comprises of thinly foliated, grey to greyish black colour, slightly weathered to fresh phyllite with partings of quartzite and Meta-sandstones. Lenses of quartzite are present, and clay coatings along discontinu-ities. The class of rock is support type V.

Figure 6: Tunnel from Face-02 (Seti Outlet portal)

Progress Analysis of Seti Outlet Tunnel

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Progress in month

Seti outlet (Face 2)Monthly progress (m)

Target



6.2.3. SETI INLET PORTAL

The total excavation from Face 3 (Seti Inlet Portal) is 546.00 m. The geology of the tunnel comprises of thinly to thickly foliated phyllite with inter-beds of thick bedded light to yellowish grey quartzite and grey to bluish grey, Meta-sandstone. The rock is fresh to moderately weathered with clay coatings along discontinuities. The class of rock is support type III.

Figure 7: Tunnel from Face-03 (Seti inlet portal)

Progress Analysis of Seti Inlet Tunnel

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Progress in month

Seti inlet (Face 3)

Monthly progress (m)

Target



6.2.4. POKU OUTLET PORTAL

The total excavation from Face 4 (Poku Outlet Portal) is 428.80m. The geology of the tunnel com-prises interbeds of thickly foliated medium grain Metasandstone with thinly foliated bluish grey phyl-lite. The rock is fresh to slightly weathered, bluish grey colour with clay coatings along discontinuities. The class of rock is support type III.

Figure 8: Tunnel from Face-04 (Poku outlet portal)

Progress Analysis of Poku Outlet Tunnel

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Progress in month

Poku outlet (Face 4)


Target



6.2.5. POKU INLET PORTAL

Total excavation from Face 5 (Poku inlet Portal) is 550.80m. The general geology of the tunnel com-prises of thickly to thinly foliated, fresh to slightly weathered light grey meta-sandstone with partings and interbeds of phyllite with clay coating along discontinuities. The class of rock is support type III.

Figure 9: Tunnel from Face-05 (Poku inlet portal)

Progress Analysis of Poku Inlet Tunnel

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20

40

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100

120

Pro

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Progress in month

Poku inlet (Face 5)Monthly progress (m)

Target



6.2.6. HRT OUTLET PORTAL

Total excavation from Face 6 (Main outlet portal) is 476.80m. The general geology of the tunnel comprises of thin to thick foliations of greenish grey Meta-sandstone with partings and inter-beddings of greenish grey phyllite, and clay coatings along discontinuities. The class of rock is support type V.

Figure 10: Tunnel from Face-06 (Main outlet portal)

Progress Analysis of Main Outlet Tunnel

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Progress in month

Poku outlet (Face 6)


Target



Table 8: Overall Tunnel Excavation Progress

Face Length of tunnel (m)

Progress (m) Total (%)

Remarks Till Au-gust,2019 August,2019 September,2019 Total

Inlet portal 911.50 222.70 34.4 35.10 257.80 28.283

Seti outlet 911.50 385.60 53.9 23.40 409.00 44.871

Seti inlet 609.50 497.60 89.7 48.40 546.00 89.582

Poku outlet 609.50 377.20 67.9 51.60 428.80 70.353

Poku inlet 878.00 494.90 97.3 55.90 550.80 62.733

Outlet por-tal 877.00 426.10 59.8 50.70 476.80 54.367

Total 4797.000 2404.100 403 265.10 2669.20 55.643

0.00

100.00

200.00

300.00

400.00

500.00

600.00

700.00

800.00

900.00

1000.00

Inlet portal Seti outlet Seti inlet Poku outlet Poku inlet Outlet portal

Length of tunnel(m)

Progress(m)

Tun

ne

l Le

ngt

hin

m

ete

r

Progress Detail of Tunnel

Faces



6.3. SURGE SHAFT AND CONNECTING TUNNEL

Full diameter excavation of surge shaft was started on June 2019. Protection of hill slope has been

completed with 75mm thick plain shotcrete with wire mesh. The excavation of connecting tunnel has

been completed up to 0+035.0m chainage, in which the outer diameter of the surge shaft is

encountered at 0+024.3m. Gantry has been installed at the surge shaft for further excavation and

mucking purpose.

6.4. PENSTOCK

The excavation for penstock has been going on below the access road as the first stage of

excavation. The excavation for Anchor block VB-02 has been completed and the penstock

alignment below the anchor block up to the existing irrigation canal has been completed. 5mm

thick fiber reinforced shotcrete has been installed at this portion for slope protection. The per-

manent diversion of the irrigation canal has been completed with installation of MS pipes with

concrete casing.

Figure 11: Surge shaft with gantry



Figure 12: Slope protection at penstock alignment

Figure 13: Rebar laying for concrete casing around irrigation pipe across penstock alignment



6.5. POWERHOUSE

Top soil removal has been completed at the Powerhouse excavation area.

6.6. TAILRACE

Construction of tailrace culvert panel 4, 7, 8, 9 and 10 has been complete.

Construction of panel 3 and 6 is completed up to 1.3m from base.

Table 9: Detail of concrete quantity at tailrace

Figure 14: View of tailrace culvert panel 03 before concreting

Description

Concrete(m3) Rebar(ton) Remarks

Till August September Total

Till August September Total

Tailrace culvert panel no. 3,4,6,7,8, 9 and 10

488.5 301.5 790 56 34 90



Figure 15: Tailrace culvert panel 3

7. HYDRO-MECHANICAL WORKS PROGRESS

Top seal beam of undersluice stop-log have been installed at both bays and installation of

side seal beam has been completed up to 6m height at both bays.

The top seal beam of radial gate has been installed and installation of side seal beam has

been completed up to 6m height at both bays.

Installation of gravel flushing pipe has been completed to 48.5% (42.015m out of 86.64).

Installation of gravel flushing transition has commenced.

About 65% of steel lining has been completed in undersluice wall.

Irrigation canal pipe at penstock alignment (39 m length) has been installed and handed

over.

Undersluice stop-log frame has been erected.

Steel lining at undersluice has been completed at both bays.

Steel lining has been completed at intake front wall.

Settling basin flushing outlet gate has been erected at four bays up to top seal beam.



Figure 16: Rolled MS pipes at HM yard

Figure 17: Installation of gravel flushing bellmouth



8. CONSTRUCTION POWER WORKS

Over voltage and under voltage protection scheme has been installed at the distribution

transformer of Headworks.

6/8 MVA transformer has been procured by NEA for installation at Manthali sub-station.

Maintenance of 33 kV transmission line (Line stringing, bush cutting) from Manthali sub-

station to proposed Sangutar sub-station has been ongoing in coordination with NEA.

1:6 c/s (Cement/Sand) Stone masonry foundation drawing has been issued for construc-

tion for installation of transformers at Seti, Poku and Powerhouse area.

Figure 18: Over and under voltage protection scheme

9. POWERHOUSE CAMP

Gabion works below Block A have been completed.

Construction of Powerhouse camp block F has been completed with finishing works re-

maining.

The main gate pillars have been constructed and fence posts have been installed around

the camp area.



Figure 19: Powerhouse staff quarter (Type: Block F)

Figure 20: View of Powerhouse Camp



Figure 21: Recreational house at powerhouse camp

10. SOCIAL AND PUBLIC

Several parts of the road at Ratmata bazaar were repaired by the means of drain cutting,

muck filling and grading.

The road to the school at Ratmata has been upgraded with stone masonry steps.

Several coordination meetings have been conducted with the respective community for

support and feedback.

Drinking water supply pipes have been provided to the residents of Poku area.

Land procurement has been made near the confluence of Pokali and Likhu River.

Compensation has been provided for eroded cultivation area at left bank of Likhu River

upstream of Headworks.

The public road at Poku area has been made serviceable by using excavator and backhoe

loader during several times.

Maintenance has been done at several locations of the irrigation canal at Ratmata, Seti

and Poku.

Stone masonry wall has been constructed at the boundary of Arunodaya School for erosion

control.



11. ENVIRONMENT, HEALTH AND SAFETY

Safety meeting was organized in Contractor’s office on 14th September and safety issues

were discussed.

Safety orientation was provided to the workers of main inlet tunnel on 15th September.

Weekly safety meeting was held with 3H-BC JV at contractors meeting hall on 21st Sep-

tember.

Tunnel safety training was provided to tunnel workers by COWI representative Mr. Szymon

Kowalczuk at 3H-BC JV meeting hall on 24th September.

Safety signage were displayed at Surge shaft area on 22nd September.

Electrical panel board at Powerhouse was secured with wire net fence on 9th September.

Sign boards for emergency assembly point were displayed on 21st September.

Traffic sign boards were displayed at required portions of the access road on 21st Septem-

ber.

Traffic sign boards were displayed at Sirise Bazaar on 20th September.

Figure 22: Restrictive signage at tunnel face



Figure 23: Emergency assembly point at Seti

12. EQUIPMENT BREAKDOWN

Propeller shaft of backhoe loader (JCB) of seti was broken down from September 10 and

it was repaired on September 12.

The wheel loader (DOOSAN SD200) of Seti was in breakdown condition due to severe

damage in engine parts from 5th September. It was repaired on 8th September and mobi-

lised again.

13. VISITORS OF THE MONTH

Senior geology consultant Mr. Subash Sunuwar visited site on 11th September.

A group of trainers from COWI and DIF visited the site on 23rd September for providing

training to the tunnel crew.



Figure 24: LLHP and SHEPL team with Geology consultant Mr. Subash Sunuwar

Figure 25: LLHP team with members from COWI and DIF



14. PHOTOS

Figure 26: Installation of gravel flushing pipe (Left) and Outlet of gravel flushing (Right)

Figure 28: Masonry at settling basin (left) gravel flushing stop-log installation (right)

Figure 27: Calibration of aggregate for concreting at site (left) and newly unloaded rebar (right)



Figure 29: Hard stone cutting at Headworks (left) and storage (right)

Figure 30: Headworks construction

Figure 31: Crusher at Headworks (left) and material stock (right)



Figure 32: Irrigation canal across Penstock alignment (left) and concrete casing (right)

Figure 33: Main inlet tunnel (Left) and Safety meeting (Right)

Figure 34: Traffic signage at Sirise bazaar



Figure 35: Safety signage at access road (left) and speed limit sign (right)

Figure 36: Wire net fence for electrical panel board at Powerhouse (left) and LOTO for safety (right)

Figure 37: Fence posts around Powerhouse staff quarter (left) and chain link fencing (right)



Figure 38: Tailrace culvert panel 6 to 10 (left) and safety signs at surge shaft area (right)

Figure 39: Plate rolling machine at HM yard (Left) and shotcrete at penstock slope area (right)

15. PROGRESS CHART

32.0%

13.0%1.0% 1.0%

PER

CEN

TAG

E O

F W

OR

K

OVERALL PROGRESS OF PROJECT

Percentage of work

lower likhu hydropower project (28.1mw) · 2019-10-24 · bhojraj paudel . lower likhu hydropower...

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