【英文标准名称】:StandardGuideforConstructionProceduresforBuriedPlasticPipe
【原文标准名称】:埋设塑料管施工程序用的标准指南
【标准号】:ASTMF1668-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:F17.61
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:backfill;compactioncontrol;embedment;fiberglasspipe;fieldtests;pipe;soilclassification;thermoplasticpipe;undergroundinstallation
【摘要】:Thisguidemaybeusedasareferenceofacceptableopen-cutconstructionpracticesfortheproperinstallationofburiedfiberglassandthermoplasticpipe.Thisguidemaybeusedasfollows:4.1.1Installationcontractorshaveanawarenessofthelevelofworkmanshiprequiredandusethisinformationforbiddingpurposesandduringconstruction.4.1.2Constructioninspectorshaveareferenceofacceptableinstallationpractices.4.1.3Specificationwritersmayusethisguideasareferenceincontractdocuments.4.1.4Designersmayreviewthisinformationduringplanninganddesignforfactorstoconsiderinthepreparationofplansandspecifications.4.1.5Theownerofthepipelinemayusethisguideasareferenceforrestorationofproperpipesupportandembedmentwhenoriginalconstructionisdisturbedduetorepairs,modifications,orconstructionofadjacentorcrossingpipelinesorcables.Thisguideshouldnotbeusedtoreplaceprojectspecificationrequirements,manufacturerrsquo;recommendations,plumbingcodes,buildingcodes,orASTMinstallationstandards,butmaybeusedtosupplementthatinformation.1.1Thisguidedescribesinstallationtechniquesandconsiderationsforopen-cutconstructionofburiedpipe.Althoughthisguidewasdevelopedforplasticpipe,theconceptsofprovidingtheappropriatesoilsupport,careinhandling,correctjoiningtechniques,propersoilcompactionmethods,andpreventionofinstallationdamagemayapplytoanypipe.1.1.1Plasticpipereferstothermoplasticandfiberglasspipe.1.1.2Thermoplasticpipereferstopipefabricatedfrompolyvinylchloride(PVC),polyethylene(PE),acrylonitrile-butadienestyrene(ABS),polybutylene(PB),orpolypropylene(PP).AlistofASTMspecificationsfortheseproductsisgivenin.1.1.3Fiberglasspipereferstoaglass-fiber-reinforcedthermosetting-resinpipe.AlistofASTMspecificationsfortheseproductsisgivenin.Note1cannotbeconsideredinclusivebecausetheremaybeunlisted,recentlyadoptedASTMspecificationsfornewproductsthatmaybeinstalledusingthisguide.Note2OnlyafewoftheASTMspecificationslistedinincludetheassociatedfittings.Whilethisguideappliestotheinstallationofpipe,couplings,andfittings,noattemptwasmadetolistallthepossiblefittingspecificationsthatmaybeusedinconjunctionwiththepipespecifications.Consulteachspecificationormanufacturerforappropriatefittingstandards.1.1.4Forsimplification,thetermpipewillbeusedinthisdocumenttomeanpipesections,fittings,andcouplings.1.2ThisguidecontainsgeneralconstructioninformationapplicableforplasticpipeandsupplementstheinstallationstandardsforthevarioustypesofpipeasdescribedinPracticesD2321,D2774,D3839,F690,F1176,andGuideF645.1.3Flexiblepipe,suchasthermoplasticandfiberglass,aretypicallydesignedtorelyonthestiffnessofthesoilsurroundingthepipeforsupport.Thecontractdocumentsshoulddescribetherequirementsofanappropriatesoilsupportsystem.Theconstructionpracticesdescribedinthisguidecanbeinstrumentalinattainingtherequiredsoilstiffness.1.3.1Adiscussionoftheinteractionbetweenaburiedpipeandthesurroundingsoilandtheimportanceofattainingpropersoilsupportisin.1.3.2Followingtheseguidelineswillbehelpfulinpreventinglocaldeformationsinthepipe.1.4Thisguidedoesnotcoverunderwaterinstallation,pipethatneedstobesupportedonpiling,perforatedpipeusedfordrainage,orgaspipelines.1.5Pipelinesthroughareasdescribedas"expansivesoils,""collapsingsoils,"landfillsorwater-loggedland(suchasswamps)shouldbeconstructedusingsite-specificinstal......
【中国标准分类号】:P94
【国际标准分类号】:23_040_20
【页数】:16P.;A4
【正文语种】:英语

标准名称：	半干态盐渍菜生产工艺通用规程 川冬菜
中标分类：	食品 >> 食品加工与制品 >> 食品加工与制品综合
发布日期：
实施日期：	1990-10-01
首发日期：
作废日期：
出版日期：

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