某码头护坡方案英文.docx
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某码头护坡方案英文.docx
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某码头护坡方案英文
1GeneralInformation
1.1LocationoftheProjectSite
Theprojectareaislocatedwithin****PortandconfinedtotheG-SectionofthePort,andtheaccessroadpresentlyusedbytraffictothedockyard.ThispartofthePortincludestheareabehindtheLighterQuaysfromthedockyardtothemainentrancegateandBerth1.ThenatureoftheworksisrehabilitationoftheG-Sectionbyconstructinganewrevetmentforstabilizedgroundintheport.
1.2ScopeofWorks
ThemainworkstobeexecutedunderthisContractshallbeasfollows:
ØDemolitionofexistingQuayStructuresandConstructionofNewrevetmentWorksonthequayside.
ØExcavationandfillingwithrequiredmaterialbelowrevetmentworks.
ØDemolitionofunstructurallysoundjetties.
1.3MainWorksQuantities
Pleaseseethetablebelowformainworkssummary.
1.4ClimateConditions
Theclimateintheregionistropicalwherebytheamountofrainfallvariesdependingupontheseason.ThemajorrainfalloccursduringthemonthsofMarch(biggerrainyseason)andbetweenOctoberandDecember.Themaximumrainfallin****occursinthemonthofAprilamountingto250mmofrainfall.Themeanannualrainfallis1,050mm.Themeanannualtemperaturesrangeisbetweenmaximumjustunder30°toaminimumofjustabove20°.Theaveragehumidityvariesfrom75%inFebruarytoamaximumofaround82%betweenAprilandDecember.
RainfallandTempof****
Theweatherin****isratherwarmthroughouttheyearwithaveragetemperatureabove25°.****experiences2seasonsofmoderaterainfall,thelongerperiodoccursbetweenMarchandJulyandtheshorterperiodoccursbetweenOctoberandDecember.Themeanrainfallvaries800mmand1,000mmperannum.
1.5TransportationandCommunicationsFacilities
Theareaisservedwithbitumenroadsandcommunicationnetworkisavailable.
1.6Materials
●Thematerialsusedforthisprojectmainlyconsistofeligiblesoil,filter,armour,crushedstone,geotextileetc.
●Soil,filter,stonecanbeobtainedfromalegiblequarry.Geotextileshallbepurchasedfromareliablesupplierorimportoutof****.
1.7WaterandPowerSupply
1.7.1WaterResourceInformation
Theprojectareahaswatersupplyfromthecitycouncilof****,therefore,withtheaidofthecitycouncilweshalltapthewatertoourcampandconnectedtoametertopermitsupplyofwaterforconstructionworks.
1.7.2PowerSupplyInformation
Theprojectareaiscoveredbythenationalgrid,henceavailabilityofpowerconnectionforconstructionworks.
1.7.3GeneralProvisions
ØThecontractorwillinvestigatethesiteandproperlystudyalltheconditionsbeforesubmittingthebid.
ØThecontractorwillarrangeformonthlysitemeetingswiththeEngineertodiscussontheprogressandtoconductinspectionofworksinwhichminuteswillbepreparedandsubmittedtotheemployer
ØAprogressreportwillbesubmittedtotheEngineeronthefirstdayofeachmonthorwheneverrequiredbytheEngineerfromthecommencementdateoftheproject.
ØTheworkstobedoneshallberatedintherelevantitemsinthebillsofquantity.
ØThecontractorwillconductmeasurementsofworksincludingstudyofthedrawingsandshallbeapprovedbytheEngineerfirst.
ØContractor’srepresentativeshallhavetheauthoritytomakedecisionsonbehalfofthecontractorandtoattendmeetingsanddiscussionswithEngineer.
ØFullinformationshallbeprovidedbythecontractorforthepersonnelintendedtobeemployed.
2PreparationofConstruction
a)Thepreparationworkwillbedoneinallrespectsatanearliestpossibletime.
b)Mobilizationofpersonnelandequipment,material.
c)Contractor’scampandaccommodation.
d)Engineer’saccommodationandoffice.
e)ConcreteMixer(asrequirement).
f)ReviewofTechnicaldocuments.
g)Providedetaileddesigndrawingsforprojectworks.
h)Reviewasbuiltdrawings,technicaldataandcontrolsurveyinformationandset-upthehorizontal,verticalcontrolnetworkwiththecooperationoftheEngineer.
i)TosubmitrevisedWorkProgramfortheWorksandtosubmitcashflowprogram.
j)Notifyauthorityforconstructionworkssite.
k)ConductnecessarysiteInspection.
l)Providetechnicaldocumentationofallmanufacturedgoodstobesupplied.
m)Providedetailsoftheplant,equipmentandlabouranddetailedconstructionmethodsforeachworks.
n)Providematerialssuppliedforapproval.
o)SiteSurveyworks.
p)Otherworksasrequirements.etc.
3GeneralConstructionArrangement
Basicconditionswillbe;
ØThetenderdocumentsfortheworks.
ØTherelevanttestresultsprovidedinthetenderdocuments;
ØWater,powerandcommunicationconditionsonsite;
ØTheindicatedpositionsofstructuresandworkquantitiesprovidedinthetenderdocument;
ØInformationobtainedfromsiteandotherinformationprovidedbytheEngineer;
ØExperienceofsimilarworks,constructionpersonnelabilityandcapability,constructionplant/equipmentconditionetc.
ØTheotherconditionofsiteandtherequirementofContract.
3.1BasicPrinciplesofLayout
Allestablishmentswillbedesignedandconstructedkeepinginmindofthefollowingprinciples:
●Minimizingoccupationofland,beinglocatedclosebutreasonable;
●Beingconvenientforlivingandtraffic,andproductionforthisProject;
●Compliancewiththerequirementforsafety/fireprevention,personnelhealthandenvironmentprotection.
3.2LayoutoftheCampandOffice
3.2.1Engineer’sAccommodationandoffices
Engineer’scampsandofficeswillbeaccordingtoEngineer’srequirementsasfollows;
●Thecontractorshallfirstsubmitthetechnicaldetails,togetherwithanybronchuresandleafletsofthevehicles,equipment,furniture,etcforapprovalbytheEngineer.
●TheEngineershallinspecttheproposedfacilities,whereappropriate,atthesupplier’spremises.
●TheEngineershallapproveormakecommentsontheproposedfacilities.
●Thecontractorshallthenproceedtoprocuretheapprovedfacilities.
●Otherthingsasrequirement.
3.2.2Contractor’sCampandoffices
TheContractor’sCampswillbeconsideredatareasonableplaceforconstructionworkandwellmanagementforsite.Thecontractor’sofficeswillbeproposedtoinstallwithinthesiteareaapprovalbyEngineer.
TheattachedforLayoutofCamp,LayoutofSiteOffice
3.3LayoutofProductionFacilities
Theproductionfacilitieslikeasmaterialdepot,Materialprocessingworkshop,concretemixer,equipmentworkshopetc.willbeinstalledastherequirement.Theproposedasthefollowings:
●Thepreliminarymaterialprocessingworkwillallbesetupinthecamparea.
●Concretemixerwillbefixedinthesitearea.
●MechanicalWorkShop:
Theworkshopwillmainlyundertakerepairandmaintenanceofconstructionmachineryandtrucks,comprisingamachineryrepairsystem.
●MaterialDepot:
Toensureprogressofwork,theprojectmaterialswillbestoredinthecorrespondingarea,soastofacilitateconcentratedmanagementandconvenientusing.
●Geotextilewillbeprocessingonsite.
●Oildepotwillbeestablishedwithinthecamparea.
●Sanitaryfacilitieswillbeestablishedinthecamp.
3.4GeneralProcedureofConstruction
PleaserefertotablebelowforGeneralConstructionProcedure.
PreparationofConstructionWorks
Earthworks
DemolitionWorks
ConstructionofnewRevetment
Commissioning
AcceptanceandHandover
AuxiliarySiteFacilitiesforConstruction
Thesitefacilitiesfortheconstructionworksinclude:
∙Temporarymaterialdepositarea
∙Safetyandaccommodation
∙Firstaidoutfits
∙Cleanlinessandsanitaryfacilities
∙Waterandpowersupply
∙Precatorymeasurestoavoiddamageofproperty
∙Displayofsignboardsforabove
4ConstructionMethod
4.1RevetmentConstructionProcess
Itisproposedthatafterproperearthworkstherevetmentshallbeconstructed.Thegeneralworkingprocessisasfollows:
SurveyandSettingOut
Dredgingand/orReplacementSoil
Checktidallevels
Pontoonlocation
Fillingmaterial
Levellingofslope
Layingofgeotextile
Layingoffilterlayer
Pontoonlocation
LayingofAmourLayer
Finish
Underwaterexcavation(dredging)process:
Initialsurveyandanalysis(underwaterterrain)-Longarmexcavatoronbargeand/orstandonbank–Excavation(dredging)underwater-dumpexcavationmaterialstobargeoronbank-Surveyandanalysisthegroundlevelofexcavation-Re-excavation(ifrequirement)-Materialsremovalanddisposal
DumpingstonebyBargeconstructionprocess:
Surveyandsettingout-Vesselpositioning-Deckbargestoneloadingandaffiliation-Dumping-CalculatethequantityofStone–Complement-Measurementandanalysisaftercompletion.
4.2Materialpreparation
Accordingtotherequirement,thematerialneedprepareasfollows:
fillingmaterial,geotextile,Filter,stone.
thestonematerialmustmeettherequirements:
①hardstone,non-weatheredflakingandcracking,Strongwindresistancecapabilities;②withareasonablegrading,toincreasecompactness,reducingthegapporosityandinfiltration,gradationmeetmasonryqualityrequirements;③stoneweightnotlessthantherequiredweight,thesheet,strip,pointedstoneandweatheredmudstoneshouldbenotusedanyway.
ProposedEquipment:
1No.30TLongreachexcavator,1No.0.7m3excavator,2Nos.Positioningboats,2Nos.Pontoon(barge),1No.Surveyvessel,4Nos.Ancho
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