【英文标准名称】:StandardPracticesforElectricalMethodsforLocatingLeaksinGeomembranesCoveredwithWaterorEarthMaterials
【原文标准名称】:水或土料覆盖的土工膜上漏洞定位的电方法的标准实施规程
【标准号】:ASTMD7007-2009
【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】:D35.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:constructionqualityassurance;electricalleaklocationmethod;geomembrane;leakdetection;leaklocation;Constructionqualityassurance;Earthcoverings;Electricalleaklocation;Geomembranes;Leaktesting--geosynthetics;Moistureanalysis--geosy
【摘要】:Geomembranesareusedasimpermeablebarrierstopreventliquidsfromleakingfromlandfills,ponds,andothercontainments.Theliquidsmaycontaincontaminantsthatifreleasedcancausedamagetotheenvironment.Leakingliquidscanerodethesubgrade,causingfurtherdamage.Leakagecanresultinproductlossorotherwisepreventtheinstallationfromperformingitsintendedcontainmentpurpose.Forthesereasons,itisdesirablethatthegeomembranehaveaslittleleakageaspractical.Geomembraneleakscanbecausedbypoorqualityofthesubgrade,poorqualityofthematerialplacedonthegeomembrane,accidents,poorworkmanship,andcarelessness.Themostsignificantcausesofleaksingeomembranesthatarecoveredwithonlywaterarerelatedtoconstructionactivitiesincludingpumpsandequipmentplacedonthegeomembrane,accidentalpunctures,andpuncturescausedbytrafficoverrocksordebrisonthegeomembraneorinthesubgrade.Themostsignificantcauseofleaksingeomembranescoveredwithearthmaterialsisconstructiondamagecausedbymachinerythatoccurswhileplacingtheearthmaterialonthegeomembrane.Suchdamagealsocanbreachadditionallayersoftheliningsystemsuchasgeosyntheticclayliners.Electricalleaklocationmethodsareaneffectivefinalqualityassurancemeasuretolocatepreviouslyundetectedormissedleaks.1.1Thesepracticesdescribestandardproceduresforusingelectricalmethodstolocateleaksingeomembranescoveredwithwaterorearthmaterialscontainingmoisture.1.2Thesepracticesareintendedtoensurethatleaklocationsurveysareperformedwithdemonstratedleakdetectioncapability.Toallowfurtherinnovations,andbecausevariousleaklocationpractitionersuseawidevarietyofproceduresandequipmenttoperformthesesurveys,performance-basedoperationsareusedthatspecifytheminimumleakdetectionperformancefortheequipmentandprocedures.1.3Thesepracticesrequirethattheleaklocationequipment,procedures,andsurveyparametersusedaredemonstratedtoresultinanestablishedminimumleakdetectionsensitivity.Thesurveyshallthenbeconductedusingthedemonstratedequipment,procedures,andsurveyparameters.1.4Separateproceduresaregivenforleaklocationsurveysforgeomembranescoveredwithwaterandforgeomembranescoveredwithearthmaterials.Separateproceduresaregivenforleakdetectionsensitivitytestsusingactualandartificialleaks.1.5Leaklocationsurveyscanbeusedongeomembranesinstalledinbasins,ponds,tanks,oreandwastepads,landfillcells,landfillcaps,andothercontainmentfacilities.Theproceduresareapplicableforgeomembranesmadeofmaterialssuchaspolyethylene,polypropylene,polyvinylchloride,chlorosulfonatedpolyethylene,bituminousmaterial,andotherelectrically-insulatingmaterials.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Warningx2014;Theelectricalmethodsusedforgeomembraneleaklocationcouldusehighvoltages,resultinginthepotentialforelectricalshockorelectrocution.Thishazardmightbeincreasedbecauseoperationsmightbeconductedinornearwater.Inparticular,ahighvoltagecouldexistbetweenthewaterorearthmaterialandearthground,oranygroundedconductor.TheseproceduresarepotentiallyVERYDANGEROUS,andcanresultinpersonalinjuryordeath.Theelectricalmethodsusedforgeomembraneleaklocationshouldbeattemptedonlybyqualifiedandexperiencedpersonnel.Appropriatesafetymeasuresmustbetakentoprotecttheleaklocationoperatorsaswellasotherpeopleatthesite.1.8Thisstanda......
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:12P.;A4
【正文语种】:英语
基本信息
标准名称: | 蒸压加气混凝土建筑应用技术规程 |
英文名称: | Technical specification for application of autoclaved aerated concrete |
中标分类: |
工程建设 >>
工程结构 >>
混凝土结构工程 |
ICS分类: |
|
替代情况: | 替代JGJ/T 17-84废止 |
发布部门: | 中华人民共和国住房和城乡建设部 |
发布日期: | 2008-11-14 |
实施日期: | 2009-05-01 |
首发日期: | |
作废日期: | |
起草单位: | 北京市建筑设计研究院等 |
起草人: | 顾同曾、周炳章、过镇海、严家禧等 |
出版社: | 中国建筑工业出版社 |
出版日期: | 2009-05-01 |
页数: | 43 |
适用范围
本规程适用于在抗震设防烈度为6~8度的地震区以及非地震区使用,强度等级为A2.5级及以上的蒸压加气混凝土砌块,强度等级为A3.5级以上的蒸压加气混凝土配筋板材的设计、施工及质量验收。
前言
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引用标准
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所属分类: 工程建设 工程结构 混凝土结构工程