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1、底基层施工准备及注意事项（Preparationandnoticeofbottombaseconstruction）Subbaseconstructionpreparationandprecautionsof.TxtTheroadintheconstructionprocess,affectedbymanyfactors,weather,temperature,hydrologicalandmechanicalequipment,constructionmethod,aremoreorlessofthisorthatproblem,oftenappearsome
2、qualityproblemsinoperation,suchaspartoftheroadsurfaceconstructioniscompleted,rigidpavementbrokenslabcracks,flexiblepavement,therewillbesevereinthebag,frothing.Althoughtheseproblemsnolongerexistaftertherectificationofqualitydefects,butrevealedaproblemintheconstructionoftheroadconstruc
3、tionisoftenattachedtotheroadsurfaceconstructionquality,butignoretheconstructionqualityofthebase.Becausethefracturesurfacelayer,thesurfacelayerBuseeenoughofaproblem,theessenceandtheconstructionqualityiscloselyrelatedto.Theroadsurfaceconstructioniscompletedandbasecloselytogether,theloa
4、donthesurfacelayermainlyrelyonthegrassrootstobear,dispersion.Theconstructionqualitywilldirectlyaffecttheservicelifeoftheroad.1constructionpreparation1)acceptanceoftheroadbed.Soilroadbedsurfaceshouldbeflat,solid,withprescribedsurfaceheight,crown,roadbedwidth,roughness,compactnessetc.s
5、hallmeetthestandardrequirements,qualifiedon-sitesupervisionengineersignedtheapprovalprocess.Wheretheacceptanceofsections,measuresmustbetakentoreachthestandard,beforetheconstructionofcementstabilizedlayer.2)constructionmachineryandequipment.Theconstructionequipmentofcementstabilizedso
6、ilwithgrader,rollerandwatertankers,eachworkinggroupshouldbeequippedwith1graders,1rollerand3watertankers,tankersnumberaccordingtothesizeofwaterqualityadjustment.Tradersintheprojectconstruction,constructionmachineryisthebestcombinationoftwoworkgroupswiththehomework,namely2graders,2roll
7、ers,5watertankers,itsavesawatertruck,andtheconstructionefficiencyisfastandcanensurethequalityofconstruction.3)cementpreparation.Thecementshouldbeusedinthefinalsettingtimeislonger,thelowergradeofPortlandcement,Portlandcement,slagcement,etc..4)proportionofcementstabilizedsoil.Inthelabo
8、ratoryofsoil
