ASTM D6028-1996(2010)e1 用改良的hantus方法测定越流性隔水层中包括蓄水层的封闭含水层水压特性的标准试验方法

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【英文标准名称】:StandardTestMethod(AnalyticalProcedure)forDeterminingHydraulicPropertiesofaConfinedAquiferTakingintoConsiderationStorageofWaterinLeakyConfiningBedsbyModifiedHantushMethod
【原文标准名称】:用改良的hantus方法测定越流性隔水层中包括蓄水层的封闭含水层水压特性的标准试验方法
【标准号】:ASTMD6028-1996(2010)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifers;aquifertests;confinedaquifers;confiningbeds;controlwells;groundwater;hydraulicproperties;leakance;leakyaquifers;observationwells;storagecoefficient;transmissivity;Storage--aquifers;Transmissivity;Confinedaquifer
【摘要】:Assumptions:Thecontrolwelldischargesataconstantrate,Q.Thecontrolwellisofinfinitesimaldiameterandfullypenetratestheaquifer.Theaquiferishomogeneous,isotropic,andareallyextensive.Theaquiferremainssaturated(thatis,waterleveldoesnotdeclinebelowthetopoftheaquifer).Theaquiferisoverlainorunderlain,orboth,everywherebyconfiningbedsindividuallyhavinguniformhydraulicconductivities,specificstorages,andthicknesses.TheconfiningbedsareboundedonthedistalsidesbyoneofthecasesshowninFig.1.1.1Thistestmethodcoversananalyticalprocedurefordeterminingthetransmissivityandstoragecoefficientofaconfinedaquifertakingintoconsiderationthechangeinstorageofwaterinoverlyingorunderlyingconfiningbeds,orboth.Thistestmethodisusedtoanalyzewater-levelorheaddatacollectedfromoneormoreobservationwellsorpiezometersduringthepumpingofwaterfromacontrolwellataconstantrate.Withappropriatechangesinsign,thistestmethodalsocanbeusedtoanalyzetheeffectsofinjectingwaterintoacontrolwellataconstantrate.1.2ThisanalyticalprocedureisusedinconjunctionwithTestMethodD4050.1.3Limitations8212;ThevaliduseofthemodifiedHantushmethod(1)islimitedtothedeterminationofhydraulicpropertiesforaquifersinhydrogeologicsettingswithreasonablecorrespondencetotheassumptionsoftheHantush-Jacobmethod(TestMethodD6029)withtheexceptionthatinthiscasethegainorlossofwaterinstorageintheconfiningbedsistakenintoconsideration(see5.1).Allpossiblecombinationsofimpermeablebedsandsourcebeds(forexample,bedsinwhichtheheadremainsuniform)areconsideredonthedistalsideoftheleakybedsthatconfinetheaquiferofinterest(seeFig.1).1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【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