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【英文标准名称】:StandardGuideforInstallationofDirectPushGroundWaterMonitoringWells
【原文标准名称】:直接推动式地下水监测井安装的标准指南
【标准号】:ASTMD6724-2004(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:directpush;groundwater;monitoringwell;siteinvestigatio;Directpushsampling;Drivenwellpoint;Environmentalsiteassessment(ESA);Ground-watermonitoring/sampling;Installation--groundwater/subsurfacedevices/applications;Jelledwellpoint;Pr
【摘要】:Thedirectpushgroundmethodisarapidandeconomicalprocedureforinstallinggroundwatermonitoringwellstoobtainrepresentativegroundwatersamplesandlocation-specifichydrogeologicmeasurements.Directpushinstallationsmayofferanadvantageoverconventionalrotarydrilledmonitoringwells(PracticeD5092)forgroundwaterinvestigationsinunconsolidatedformationsbecausetheyreducedisturbancetotheformation,andeliminateorminimizedrillcuttings.Atfacilitieswherecontaminatedsoilsarepresent,thiscanreducehazardexposureforoperators,localpersonnel,andtheenvironment,andcanreduceinvestigativederivedwastes.Additionally,smallerequipmentcanbeusedforinstallation,providingbetteraccesstoconstrictedlocations.Directpushmonitoringwellsgenerallydonotextendtodepthsattainablebydrilling.Theyarealsotypicallysmallerindiameterthandrilledwells,therebyreducingpurgewatervolumes,samplingtime,andinvestigativederivedwastes.PracticeD5092monitoringwellsareusedwhenlargerdiametersand/orsamplevolumesarerequired,oratdepthstowhichitisdifficulttoinstalldirectpushwells.Directpushmonitoringwellsshouldbeviableformonitoringformanyyears.Priortoconstructionandinstallationofadirectpushwelloranyothertypeofgroundwaterwellthereadershouldconsultappropriatelocalandstateagenciesregardingregulatoryrequirementsforwellconstructioninthestate.Aregulatoryvariancemayberequiredforinstallationofdirectpushmonitoringwellsinsomestates.Todate,publishedcomparisonstudiesbetweendrilledmonitoringwellsanddirectpushmonitoringwellshaveshowncomparability(1,2,3,4,5).However,selectionofdirectpushmonitoringwellsoverconventionalrotarydrilledwellsshouldbebasedonseveralcriteria,suchassiteaccessibilityandpenetrability,stratigraphicstructure,depthtogroundwater,andaquifertransmissivity.Typicalpenetrationdepthsforinstallationofgroundwatermonitoringwellswithdirectpushequipmentdependonmanyvariables.Someofthevariablesarethesizeandtypeofthedrivingsystem,diameterofthedriverodsandmonitoringwell,andtheresistanceoftheearthmaterialsbeingpenetrated.Somedirectpushsystemsarecapableofinstallinggroundwatermonitoringwellstodepthsinexcessof100feet,andlargerdirectpushequipment,suchasthevibratorysonictypedrill(GuideD6286)arecapableofreachingmuchgreaterdepths,sometimesinexcessof400ft.However,installationdepthsof10to50feetaremostcommon.Directpushmethodscannotbeusedtoinstallmonitoringwellsinconsolidatedbedrock(forexample,granite,limestone,gneiss),butareintendedforinstallationinunconsolidatedmaterialssuchasclays,silts,sands,andsomegravels.Additionally,depositscontainingsignificantcobblesandboulders(forexample,someglacialdeposits),orstronglycementedmaterials(forexample,caliche)arelikelytohinderorpreventpenetrationtothedesiredmonitoringdepth.Fordirectpushmethodstoprovideaccurategroundwatermonitoringresults,precautionsmustbetakentoensurethatcross-contaminationbyx201C;smearingx201D;orx201C;drag-downx201D;(thatis,drivingshallowcontaminationtodeeperlevels)doesnotoccur,andthathydraulicconnectionsbetweenotherwiseisolatedwaterbearingstrataarenotcreated.Similarprecautionsasthoseappliedduringconventional..........
【中国标准分类号】:P13
【国际标准分类号】:13_060_10
【页数】:9P.;A4
【正文语种】:英语


【英文标准名称】:Specificationsforparticulartypesofwindingwires-Part13:Polyesterorpolyesterimideovercoatedwithpolyamide-imideenamelledroundcopperwire,class200;AmendmentA1(IEC60317-13:1990/A1:1997);GermanversionEN60317-13/A1:1997
【原文标准名称】:特种绕组线规范.第13部分:用聚酰胺-酰亚胺额外涂层的聚酯或聚酰胺酯的上釉圆铜线.200级.修改件A1(IEC60317-13:1990/A1:1997);德文版本EN60317-13/A1:1997
【标准号】:EN60317-13/A1-1997
【标准状态】:现行
【国别】:
【发布日期】:1997-10
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:绕组;外层;聚酯树脂;瓷漆的;覆层;绕组线;尺寸;电线;聚酯(亚胺);聚酯;聚酰胺亚胺;制冷剂;材料;规范(验收);试验;金属线;电气工程;验收规范;交货条件;圆导线;电绝缘材料;绝缘线;包装件;漆包线;铜线;铜
【英文主题词】:Acceptancespecification;Coatings;Copper;Copperwires;Deliveryconditions;Dimensions;Electricwires;Electricalengineering;Electricalinsulatingmaterials;Enamelled;Enamelledwires;Finishcoatings;Insulatedwires;Materials;Outerlayers;Packages;Polyamides;Polyamid-imides;Polyesterresins;Polyesters;Properties;Refrigerants;Roundwires;Specification(approval);Testing;Windingwires;Windings;Wires
【摘要】:
【中国标准分类号】:K12
【国际标准分类号】:29_060_10
【页数】:4P.;A4
【正文语种】:英语