cable tunnel
DESCRIPTION
Cable tunnel proposal for utility corridor constraint areas in Qatar.... By Pradeesh VijayanTRANSCRIPT
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PROPOSEDPROPOSEDPROPOSEDPROPOSED
CABLECABLE TUNNELTUNNELFORFOREXPRESSWAYGROUPEXPRESSWAYGROUP 22 PROJECTPROJECT 2727
15June201515June2015
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PROPOSEDCABLESTACKINGFORPROPOSEDCABLESTACKINGFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
CONTENTSCONTENTS
1.1. INTRODUCTIONINTRODUCTION2.2. UNDERGROUNDINSTALLATIONMETHODSUNDERGROUNDINSTALLATIONMETHODS3.3. GENERALARRANGEMENTSGENERALARRANGEMENTS4.4. ELECTRICALELECTRICAL5.5. MECHANICALMECHANICAL6.6. CONSTRUCTIONCONSTRUCTION6.6. CONSTRUCTIONCONSTRUCTION7.7. UTILITYBUILDINGSUTILITYBUILDINGS
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PROPOSEDCABLETUNNELFORPROPOSEDCABLETUNNELFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
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PROPOSEDCABLETUNNELFORPROPOSEDCABLETUNNELFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
CORRIDORISSUES:BASISFORCABLETUNNELSCORRIDORISSUES:BASISFORCABLETUNNELS
LIMITEDCORRIDORSPACEAVAILABLE LARGENUMBEROFCIRCUITSTODIVERT/ROUTEWITHIN
THEAVAILABLECORRIDOR MMUPADVISEDTHATNOFURTHERLANDTAKEWILLBE
APPROVEDAPPROVED
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AL JAMIAAREQUIRED CORRIDOR = 5.8m
AL MARKHIYAREQUIRED CORRIDOR = 26 7m
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AL MARKHIYA STREET
L=823m
AVAILABLE CORRIDOR = 1.3mREQUIRED CORRIDOR = 26.7mAVAILABLE CORRIDOR = 5.2m
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EL=555m
L=442m
L=529mL=487m
L=381m
CORRIDOR CONSTRAIN AREAS
L=381m
AL ISTIQLALREQUIRED CORRIDOR = 22.8mAVAILABLE CORRIDOR = 5.2m
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CORRIDOR CONSTRAIN AREAS
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EXISTING ROAD LEVEL
FINISHED ROAD LEVEL
ACCESS AND VENT SHAFTS ACCESS AND
VENT SHAFTSVENT SHAFTS
PROPOSED CABLE TUNNELPROPOSED CABLE TUNNEL
AL MARKHIYA: PLAN AND PROFILE
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2.1UNDERGROUNDINSTALLATIONMETHODS2.1UNDERGROUNDINSTALLATIONMETHODS
METHOD CAUSE1. DIRECT BURIED INADEQUATE UTILITY CORRIDOR
AT FEW AREASAT FEW AREAS2. CABLE STACKING NO FINAL CONSENT FROM
RESPECTIVE AGENCIES3 CABLE TUNNEL SIMPLE CONSTRUCTION AND3. CABLE TUNNEL
- CUT AND COVERSIMPLE CONSTRUCTION AND INEXPENSIVE WHILE COMPARING TBM (TUNNEL BORING METHOD)
4. CABLE TUNNEL - TBM EXPENSIVE AMONG OPTIONS
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2.2TYPICALSECTIONSOFCABLETUNNELS2.2TYPICALSECTIONSOFCABLETUNNELS
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CABLE TUNNEL via TBMCABLE TUNNEL via CUT & COVER
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PROPOSEDCABLETUNNELFORPROPOSEDCABLETUNNELFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
2.3CUTANDCOVER3DVIEWS2.3CUTANDCOVER3DVIEWS
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PROPOSEDCABLETUNNELFORPROPOSEDCABLETUNNELFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
2.42.4TBMTBM TUNNELBORINGMETHODTUNNELBORINGMETHOD 3DVIEWS3DVIEWS
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3.1GENERALARRANGEMENT3.1GENERALARRANGEMENT
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TUNNEL SECTION ACCESS SHAFT
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3.2GENERALARRANGEMENT3.2GENERALARRANGEMENT 3DVIEW3DVIEW
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PROPOSEDCABLEGALLERYFORPROPOSEDCABLEGALLERYFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
3.33.3TBMTBM GENERALARRANGEMENTGENERALARRANGEMENT 3DVIEWS3DVIEWS
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4.1CABLESANDFEEDERS4.1CABLESANDFEEDERS
ALISTIQLAL1CABLEGALLERYNORTHWEST
TYPE QU ID
EHV 6FEEDERS
NEWDOHA A/WBS 1(220KV) 1
NEWDOHA A/WBS 2(220KV) 1
NEWDOHA A/NEWDOHA J(132KV) 4
WEST BAY SUPER 2 / NEW DOHA A (66 KV) 1
HV 5FEEDERS
WESTBAYSUPER 2/NEWDOHA A(66KV) 1
NEWDOHA J/HAMADMEDICALCITY(66KV) 2
NEWDOHA A/NEWDOHA D(66KV) 2
MV 3FEEDERS SS/SS
SECTION
/
LV 3CABLES FP'S
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PLAN
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PROPOSEDCABLEGALLERYFORPROPOSEDCABLEGALLERYFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
4.2CABLEENTRYDETAILS4.2CABLEENTRYDETAILS
MULTI CABLE TRANSITS
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PROPOSEDCABLEGALLERYFORPROPOSEDCABLEGALLERYFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
4.3DISTRIBUTIONANDDIVERSION4.3DISTRIBUTIONANDDIVERSION
CABLE TRANSITS
DISTRIBUTION AND DIVERSION
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DISTRIBUTION AND DIVERSION
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4.44.4TBMTBM CABLEENTRYANDTRANSITSCABLEENTRYANDTRANSITS
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4.5TUNNELLIGHTING4.5TUNNELLIGHTING
LUXLEVEL:250LUXLEVEL:250 300LUX300LUX SURFACE MOUNTED LIGHT FITTINGSSURFACE MOUNTED LIGHT FITTINGS SURFACEMOUNTEDLIGHTFITTINGS,SURFACEMOUNTEDLIGHTFITTINGS,
NORMAL/EMERGENCYWITHBUILTINNORMAL/EMERGENCYWITHBUILTINBATTERIESFOR3HRSBATTERIESFOR3HRSS O 3 SS O 3 S
30%LIGHTINGFIXTURESTOBEEQUIPPED30%LIGHTINGFIXTURESTOBEEQUIPPEDWITH BUILT IN BATTERIESWITH BUILT IN BATTERIESWITHBUILTINBATTERIESWITHBUILTINBATTERIES
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4.7REDUNDANCY4.7REDUNDANCY
100% STANDBY DIESEL GENERATOR BACKUP100% STANDBY DIESEL GENERATOR BACKUP 100%STANDBYDIESELGENERATORBACKUP100%STANDBYDIESELGENERATORBACKUP UPSANDBATTERYUPSANDBATTERY EMERGENCYPOWERBACKUPEMERGENCYPOWERBACKUP
FORLIFESAFETYFORLIFESAFETY
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PROPOSEDCABLESTACKINGFORPROPOSEDCABLESTACKINGFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
4.6MONITORINGANDCONTROLLING4.6MONITORINGANDCONTROLLING24 7 REMOTE SURVEILANCE OF24 7 REMOTE SURVEILANCE OF 24x7REMOTESURVEILANCEOF24x7REMOTESURVEILANCEOFCABLEPERFORMANCEVIACABLEPERFORMANCEVIAENERGY MANAGEMENT SYSTEMSENERGY MANAGEMENT SYSTEMSENERGYMANAGEMENTSYSTEMSENERGYMANAGEMENTSYSTEMS
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PROPOSEDCABLETUNNELSFORPROPOSEDCABLETUNNELSFOREXPRESSWAYPROGRAMMEEXPRESSWAYPROGRAMME
5.1TUNNELVENTILLATION5.1TUNNELVENTILLATION
MAX TEMPERATURE IN TUNNEL TO BEMAX TEMPERATURE IN TUNNEL TO BE MAX.TEMPERATUREINTUNNELTOBEMAX.TEMPERATUREINTUNNELTOBENOGREATERTHAN6NOGREATERTHAN6CABOVECABOVEAMBIENT TEMPERATUREAMBIENT TEMPERATUREAMBIENTTEMPERATUREAMBIENTTEMPERATURE CONSIDERED52CFORDOHACONSIDERED52CFORDOHA
MIN AIR VELOCITY SHALL BE 0 5 m/sMIN AIR VELOCITY SHALL BE 0 5 m/s MIN.AIRVELOCITYSHALLBE0.5m/s.MIN.AIRVELOCITYSHALLBE0.5m/s.THISMAYINCREASEDTO2m/sTOTHISMAYINCREASEDTO2m/sTOPREVENTLAYERINGOFTOXICGASESPREVENTLAYERINGOFTOXICGASES
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5.2VENTILLATIONSHAFTS5.2VENTILLATIONSHAFTS SUPPLYANDEXTRACTFANSATSUPPLYANDEXTRACTFANSAT
MAX.LENGTHOFMAX.LENGTHOF500500MM
POSSIBILITYOFARCHITECTURALTREATMENTPOSSIBILITYOFARCHITECTURALTREATMENT
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5.3SMOKEEXTRACTION5.3SMOKEEXTRACTION
DUALSPEEDFANSFORNORMALDUALSPEEDFANSFORNORMALVENTILLATIONANDSMOKEEXTRACTIONVENTILLATIONANDSMOKEEXTRACTION
SMOKE,HEAT&COSENSORSTOACTIVATESMOKE,HEAT&COSENSORSTOACTIVATESMOKEEXTRACTIONSMOKEEXTRACTION
FULLYREVERSIBLEFANSTOMANAGETHEFULLYREVERSIBLEFANSTOMANAGETHEAIRFLOWDIRECTIONDURINGFIREAIRFLOWDIRECTIONDURINGFIREANDRATEDAT300ANDRATEDAT300CFOR1.5HOURSCFOR1.5HOURS
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5.4FIREDETECTIONANDPROTECTION5.4FIREDETECTIONANDPROTECTION
FIREDETECTIONANDFIREALARMSYSTEMSFIREDETECTIONANDFIREALARMSYSTEMSASPERQCCD,NFPA,BSASPERQCCD,NFPA,BS
DRYTYPEDRYTYPEFIRESUPPRESSIONSYSTEMSFIRESUPPRESSIONSYSTEMS
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5.5DRAINAGE5.5DRAINAGE WATER RUN OFF FROM ACCIDENTAL SPILL OR LEAK TOWATER RUN OFF FROM ACCIDENTAL SPILL OR LEAK TO WATERRUNOFFFROMACCIDENTALSPILLORLEAKTOWATERRUNOFFFROMACCIDENTALSPILLORLEAKTO
BECOLLECTEDATSUMPPUMPSANDDISCHARGEBECOLLECTEDATSUMPPUMPSANDDISCHARGETOSTORMWATERNETWORKTOSTORMWATERNETWORK
DUTYANDSTANDBYSUBMERSIBLEDUTYANDSTANDBYSUBMERSIBLECENTRIFUGALPUMPSCENTRIFUGALPUMPSANDCONTROLPANELSANDCONTROLPANELS
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6.1CONSTRUCTION6.1CONSTRUCTION OPENCUTANDCOVEROPENCUTANDCOVER
CONSTRUCTION STAGESCONSTRUCTION STAGES
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M i J ki P
6.2PIPEJACKINGANDMICROTUNNELING6.2PIPEJACKINGANDMICROTUNNELINGMain Jacking PressureD 3000 : 2000 Ton (200Ton*10EA)D 2500 : 1600 Ton (200Ton*8EA)
Intermediate Jacking Pressure g(Stroke : 70 cm)D 3000 : 1875 Ton (75Ton* 25EA)D 2500 : 1500 Ton (75Ton* 20EA)
Intermediate Jacking Location1st I.P : 60m (from head)2nd I.P : 120m (from 1st I.P)3rd I.P : 120m (from 2nd I.P)
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( )4th I.P : 120m (from 3rd I.P)
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6.3JACKINGANDRECEIVINGSHAFTS6.3JACKINGANDRECEIVINGSHAFTS
TYPICAL JACKING SHAFT TYPICAL RECEIVING SHAFT
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6.4MICROTUNNELSHAFTSPLATFORMANDLADDER6.4MICROTUNNELSHAFTSPLATFORMANDLADDER
TYPICAL PLATFORM AND LADDER IN TUNNEL SHAFTS
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6.5CABLETUNNEL6.5CABLETUNNELRESCUESYSTEMRESCUESYSTEM
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7.1UTILITYBUILDINGS7.1UTILITYBUILDINGS
REQUIREDAREA=30mx30m(APROX.)REQUIREDAREA=30mx30m(APROX.)(RESERVESPACEFORTRANSFORMER,SWITCHGEAR,MECHANICAL,(RESERVESPACEFORTRANSFORMER,SWITCHGEAR,MECHANICAL,UPS,BATTERY,CONTROLPANELS,COMMANDROOMS,TELECOM,UPS,BATTERY,CONTROLPANELS,COMMANDROOMS,TELECOM,GENERATOR,FUELTANK,CLEANAGENT,STORE,..)GENERATOR,FUELTANK,CLEANAGENT,STORE,..)
REQUIRESLANDACQUISITIONREQUIRESLANDACQUISITION
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7.3UTILITYBUILDINGS7.3UTILITYBUILDINGS LOCATIONSLOCATIONS
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ALMARKHIYAUTILITYBUILDINGALMARKHIYAUTILITYBUILDING ALJAMIAAUTILITYBUILDINGALJAMIAAUTILITYBUILDING
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7.3UTILITYBUILDINGS7.3UTILITYBUILDINGS LOCATIONSLOCATIONSN
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ALISTIQLAL1&2UTILITYBUILDINGALISTIQLAL1&2UTILITYBUILDING ALISTIQLAL3&4UTILITYBUILDINGALISTIQLAL3&4UTILITYBUILDING
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