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【英文标准名称】:StandardPracticeforUndergroundInstallationofThermoplasticPipeforSewersandOtherGravity-FlowApplications
【原文标准名称】:下水道和其它自流设备用热塑塑料管的地下安装的标准方法
【标准号】:ASTMD2321-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F17.62
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:backfill;bedding;compaction;embedment;haunching;migration;sewerpipe;soilstiffness;thermoplastic;undergroundinstallation;Backfill;Deflection--plastics;Gravitysewerpipe;Haunching;Sewerpipe(thermoplastic);Thermoplasticpipe/tube/fitting
【摘要】:Thispracticeisforusebydesignersandspecifiers,installationcontractors,regulatoryagencies,owners,andinspectionorganizationswhoareinvolvedintheconstructionofsewersandothergravity-flowapplicationsthatutilizeflexiblethermoplasticpipe.Aswithanystandardpractice,modificationsmayberequiredforspecificjobconditionsorforspeciallocalorregionalconditions.RecommendationsforinclusionofthispracticeincontractdocumentsforaspecificprojectaregiveninAppendixX2.1.1Thispracticeprovidesrecommendationsfortheinstallationofburiedthermoplasticpipeusedinsewersandothergravity-flowapplications.Theserecommendationsareintendedtoensureastableundergroundenvironmentforthermoplasticpipeunderawiderangeofserviceconditions.However,becauseofthenumerousflexibleplasticpipeproductsavailableandtheinherentvariabilityofnaturalgroundconditions,achievingsatisfactoryperformanceofanyoneproductmayrequiremodificationtoprovisionscontainedhereintomeetspecificprojectrequirements.1.2Thescopeofthispracticenecessarilyexcludesproductperformancecriteriasuchasminimumpipestiffness,maximumservicedeflection,orlongtermstrength.Thus,itisincumbentupontheproductmanufacturer,specifier,orprojectengineertoverifyandassurethatthepipespecifiedforanintendedapplication,wheninstalledaccordingtoproceduresoutlinedinthispractice,willprovidealongterm,satisfactoryperformanceaccordingtocriteriaestablishedforthatapplication.AcommentaryonfactorsimportantinachievingasatisfactoryinstallationisincludedinAppendixX1.Note18212;Specificparagraphsintheappendixarereferencedinthebodyofthispracticeforinformationalpurposes.Note28212;ThefollowingASTMstandardsmaybefoundusefulinconnectionwiththispractice:PracticeD420,TestMethodD1556,MethodD2216,SpecificationD2235,TestMethodD2412,SpecificationD2564,PracticeD2657,PracticeD2855,TestMethodsD2922,TestMethodD3017,PracticeF402,SpecificationF477,SpecificationF545,andSpecificationF913.Note38212;MostPlumbingCodesandsomeBuildingCodeshaveprovisionsfortheinstallationofundergroundx201C;buildingdrainsandbuildingsewers.x201D;Seethemforplumbingpipingapplications.1.3Units