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ASTM F1759-1997(2004) 地下高密度聚乙烯人孔设计的标准规程

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【英文标准名称】:StandardPracticeforDesignofHigh-DensityPolyethylene(HDPE)ManholesforSubsurfaceApplications
【原文标准名称】:地下高密度聚乙烯人孔设计的标准规程
【标准号】:ASTMF1759-1997(2004)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:F17.26
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:downdrag;earthloads;manholes;PEpipe;polyethylene;profilepipe
【摘要】:Uses8212;Therequirementsofthispracticeareintendedtoprovidemanholessuitableforinstallationinpipelineorconduittrenches,landfillperimeters,andlandfillswithlimitedsettlementcharacteristics.Directinstallationinsanitarylandfillsorotherfillssubjecttolarge(inexcessof10%)soilsettlementsmayrequirespecialdesignsoutsidethescopeofthispractice.4.1.1Manholesareassumedtobesubjecttogravityflowonly.DesignAssumption8212;ThedesignmethodologyinthispracticeappliesonlytomanholesthatareinstalledinbackfillconsistingofClassI,ClassII,orClassIIImaterialasdefinedinPracticeD2321,whichhasbeencompactedtoaminimumof90%standardproctordensity.Thedesignsarebasedonthebackfillextendingatleast3.5ft(1m)fromtheperimeterofthemanholeforthefullheightofthemanholeandextendinglaterallytoundisturbedinsitusoil.Manholesareassumedplacedonastablebaseconsistingofatleast12in.(30.5cm)ofClassImaterialcompactedtoatleast95%standardproctordensityoraconcreteslab.Thefoundationsoilsunderthebasemustprovideadequatebearingstrengthtocarrydowndragloads.4.2.1Manholesinstalledinsanitarylandfillsorotherfillsexperiencinglargesettlementsmayrequirespecialdesignsbeyondthescopeofthispractice.ThedesignershouldevaluateeachspecificsitetodeterminethesuitabilityforuseofHDPEmanholesandthedesignershouldprepareawrittenspecificationforinstallation,whichisbeyondthescopeofthispractice.1.1Thisspecificationcoversgeneralandbasicproceduresrelatedtothedesignofmanholesandcomponentsmanufacturedfromhigh-densitypolyethylene(HDPE)foruseinsubsurfaceapplicationsandappliestopersonnelaccessstructures.Thepracticecoversthematerial,thestructuraldesignrequirementsofthemanholebarrel(alsocalledverticalriserorshaft),floor(bottom),andtop,andjointsbetweenshaftsections.1.2ThispracticeofferstheminimumrequirementsfortheproperdesignofanHDPEmanhole.Duetothevariabilityinmanholeheight,diameter,andthesoileachmanholemustbedesignedanddetailedindividually.Whenproperlyusedandimplemented,thispracticecanhelpensureasafeandreliablestructurefortheindustry.1.3Disclaimer-Thereaderiscautionedthatindependentprofessionaljudgmentmustbeexercisedwhendataorrecommendationssetforthinthispracticeareapplied.ThepublicationofthematerialcontainedhereinisnotintendedasarepresentationorwarrantyonthepartofASTMthatthisinformationissuitableforgeneralorparticularuse,orfreedomfrominfringementofanypatentorpatents.Anyonemakinguseofthisinformationassumesallliabilityarisingfromsuchuse.Thedesignofstructuresiswithinthescopeofexpertiseofalicensedarchitect,structuralengineer,orotherlicensedprofessionalfortheapplicationofprinciplestoaparticularstructure.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninparenthesesareprovidedforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P04
【国际标准分类号】:83_080_20
【页数】:12P.;A4
【正文语种】:


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【英文标准名称】:StandardSpecificationforQuartz-BasedDimensionStone
【原文标准名称】:石英基规格石料用标准规范
【标准号】:ASTMC616-2008
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:砌块;建筑;施工材料;天然石料;岩石;砂岩;石
【英文主题词】:Blocks(building);Construction;Constructionmaterials;Naturalstones;Rocks;Sandstone;Stone
【摘要】:
【中国标准分类号】:
【国际标准分类号】:91_100_15
【页数】:2P;A4
【正文语种】:英语


基本信息
标准名称:管道下向焊接工艺规程
英文名称:Welding procedures for vertical down stick welding of pipes
中标分类:
ICS分类: 石油及相关技术 >> 石油产品和天然气储运设备
发布日期:1993-09-09
实施日期:1994-03-01
首发日期:1900-01-01
作废日期:2010-08-20
出版日期:1900-01-01
页数:13页
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所属分类: 石油及相关技术 石油产品和天然气储运设备