GA/T 134-1996 机动车安全检测站条件

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【英文标准名称】:StandardTestMethodforDeterminingTransmissivityandStorageCoefficientofLow-PermeabilityRocksbyInSituMeasurementsUsingtheConstantHeadInjectionTest
【原文标准名称】:用恒定水头喷射试验现场测定低渗透性岩石的透过比和释水系数的标准试验方法
【标准号】:ASTMD4630-1996(2008)
【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】:borehole;constantheadtesting;faultzones;fieldtesting;flow;flowandflowrate;insitu;permeability;pressuretesting;rock;saturation;storativity;transmissivity;viscosity;water;watersaturation;Boreholedrilling;Constantheadtesting;Di
【摘要】:TestMethod8212;Theconstantpressureinjectiontestmethodisusedtodeterminethetransmissivityandstorativityoflow-permeabilityformationssurroundingpacked-offintervals.Advantagesofthemethodare:(1)itavoidstheeffectofwell-borestorage,(2)itmaybeemployedoverawiderangeofrockmasspermeabilities,and(3)itisconsiderablyshorterindurationthantheconventionalpumpandslugtestsusedinmorepermeablerocks.Analysis8212;Thetransientwaterflowratedataobtainedusingthesuggestedtestmethodareevaluatedbythecurve-matchingtechniquedescribedbyJacobandLohman(1)andextendedtoanalysisofsinglefracturesbyDoeetal.(2).Ifthewaterflowrateattainssteadystate,itmaybeusedtocalculatethetransmissivityofthetestinterval(3).Units:Conversions8212;Thepermeabilityofaformationisoftenexpressedintermsoftheunitdarcy.Aporousmediumhasapermeabilityof1darcywhenafluidofviscosity1cp(1mPax00B7;s)flowsthroughitatarateof1cm3/s(10x2212;6m3/s)/1cm2(10x2212;4m2)cross-sectionalareaatapressuredifferentialof1atm(101.4kPa)/1cm(10mm)oflength.Onedarcycorrespondsto0.987x03BC;m2.Forwaterastheflowingfluidat20x00B0;C,ahydraulicconductivityof9.66x03BC;m/scorrespondstoapermeabilityof1darcy.1.1Thistestmethodcoversafieldprocedurefordeterminingthetransmissivityandstorativityofgeologicalformationshavingpermeabilitieslowerthan10x2212;3x03BC;m2(1millidarcy)usingconstantheadinjection.1.2Thetransmissivityandstorativityvaluesdeterminedbythistestmethodprovideagoodapproximationofthecapacityofthezoneofinteresttotransmitwater,ifthetestintervalsarerepresentativeoftheentirezoneandthesurroundingrockisfullywater-saturated.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:07_060
【页数】:6P.;A4
【正文语种】:英语


MIL-STD-1518B (NOTICE 1) MILITARY STANDARD: STORAGE, HANDLING, AND SERVICING OF AVIATION FUELS, LUBRICATING OILS, AND HYDRAULIC FLUIDS AT CONTRACTOR FACILITIES (16 DEC 1997)., This notice should be filed in front of MIL-STD-1518B, dated 3 March 1980. MIL-STD-15818B is Inactive for new design and is no longer used except for replacement purposes.