市政管道工程施工 Municipal Pipeline C

市政管道工程施工MunicipalPipelineConstruction教學(xué)單元1市政管道工程施工基本知識TeachingUnit1:BasicKnowledgeofMunicipalPipelineConstruction排水管道工程（基本知識）DrainagePipelineEngineering(BasicKnowledge)1.2.5排水管道的基礎(chǔ)1.2.5FoundationsofDrainagePipelines基礎(chǔ)Foundation管道Pipeline管座PipeSeat平基FlatFoundation墊層CushionLayer地基FoundationSoil1.基礎(chǔ)1.Foundation包括：地基、基礎(chǔ)、管座Includes:FoundationSoil,Base,PipeSeat基礎(chǔ)的種類TypesofFoundations砂土基礎(chǔ)SandSoilFoundation適用于土壤條件非常好、無地下水的地區(qū)，管道直徑小于600mm，管頂覆土厚度在0.7-2.0m之間的管道，不在車行道下的次要管道及臨時性管道。Suitableforareaswithverygoodsoilconditionsandnogroundwater,pipelineswithadiameterlessthan600mm,andpipeswithacoversoilthicknessof0.7-2.0m,notlocatedunderroadways,aswellassecondaryandtemporarypipelines.基礎(chǔ)的種類TypesofFoundations混凝土枕基ConcreteSleeperBase建在管道接口處。適用于土壤條件較好、無地下水的地區(qū)，是一局部基礎(chǔ)。Builtatthepipelinejoint.Suitableforareaswithrelativelygoodsoilconditionsandnogroundwater,itisapartialfoundation.基礎(chǔ)的種類TypesofFoundations混凝土帶形基礎(chǔ)ConcreteStripFoundation沿管道全長敷設(shè)。適用土壤條件差、震區(qū)、重要管道處。按管座的形式，分為90度、135度、180度三種管座基礎(chǔ)Laidalongtheentirelengthofthepipeline.Suitableforareaswithpoorsoilconditions,seismiczones,andimportantpipelinelocations.Accordingtotheformofthepipeseat,therearethreetypesofpipeseatfoundations:90degrees,135degrees,and180degrees.90°管座基礎(chǔ)90°PipeSeatFoundation135°管座基礎(chǔ)135°PipeSeatFoundation180°管座基礎(chǔ)18