【英文标准名称】:StandardTestMethodforDensityofSoilandRockinPlacebytheWaterReplacementMethodinaTestPit
【原文标准名称】:用测试井中水置换法就地测定土壤和岩石密度的标准试验方法
【标准号】:ASTMD5030-2004
【标准状态】:现行
【国别】:
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:密度;试验;土壤分析
【英文主题词】:acceptancetest;degreeofcompaction;densitytests;fieldtest;In-placedensity;pittest;qualitycontrol;testpitdensity;unitweight;waterpit;waterreplacementmethod
【摘要】:Thistestmethodisusedtodeterminethein-placeunitweightofcompactedmaterialsinconstructionofearthembankments,roadfills,andstructurebackfill.Forconstructioncontrol,itcanbeusedasthebasisforacceptanceofmaterialcompactedtoaspecifiedunitweightortoapercentageofamaximumunitweightdeterminedbyastandardlaboratorytestmethodsuchasdeterminedfromTestMethodsD698orD1557,subjecttothelimitationsdiscussedin1.4.Thistestmethodcanbeusedtodeterminein-placeunitweightofnaturalsoildeposits,aggregates,soilmixtures,orothersimilarmaterial.1.1Thistestmethodcoversthedeterminationofthein-placedensityandunitweightofsoilandrockusingwatertofillalinedtestpittodeterminethevolumeofthetestpit.Theuseoftheword"rock"inthistestmethodisusedtoimplythatthematerialbeingtestedwilltypicallycontainparticleslargerthan3in.(75mm).1.2Thistestmethodisbestsuitedfortestpitswithavolumebetweenapproximately3and100ft3(0.08and2.83m3).Ingeneral,thematerialstestedwouldhavemaximumparticlesizesover5in.(125mm).Thistestmethodmaybeusedforlargersizedexcavationsifdesirable.1.2.1Thisprocedureisusuallyperformedusingcircularmetaltemplateswithinsidediametersof3ft(0.9m)ormore.Othershapesormaterialsmaybeusedprovidingtheymeettherequirementsofthistestmethodandtheguidelinesgiveninfortheminimumvolumeofthetestpit.1.2.2TestMethodD4914maybeusedasanalternativemethod.Itsuse,however,isusuallyonlypracticalforvolumedeterminationoftestpitsbetweenapproximately1and6ft3(0.03and0.17m3).1.2.3TestMethodD1556orTestMethodD2167isusuallyusedtodeterminethevolumeoftestholessmallerthan1ft3(0.03m3).1.3Thetwoproceduresaredescribedasfollows:1.3.1ProcedureAIn-PlaceDensityandUnitWeightofTotalMaterial(Section).1.3.2ProcedureBIn-PlaceDensityandUnitWeightofControlFraction(Section10).1.4SelectionofProcedure1.4.1ProcedureAisusedwhenthein-placeunitweightoftotalmaterialistobedetermined.ProcedureAcanalsobeusedtodeterminepercentcompactionorpercentrelativedensitywhenthemaximumparticlesizepresentinthein-placematerialbeingtesteddoesnotexceedthemaximumparticlesizeallowedinthelaboratorycompactiontest(TestMethodsD698,D1557,D4253,D4254,D4564).ForTestMethodsD698andD1557only,theunitweightdeterminedinthelaboratorycompactiontestmaybecorrectedforlargerparticlesizesinaccordancewith,andsubjecttothelimitationsof,PracticeD4718.1.4.2ProcedureBisusedwhenpercentcompactionorpercentrelativedensityistobedeterminedandthein-placematerialcontainsparticleslargerthanthemaximumparticlesizeallowedinthelaboratorycompactiontestorwhenPracticeD4718isnotapplicableforthelaboratorycompactiontest.Thenthematerialisconsideredtoconsistoftwofractions,orportions.Thematerialfromthein-placeunitweighttestisphysicallydividedintoacontrolfractionandanoversizefractionbasedonadesignatedsievesize.Theunitweightofthecontrolfractioniscalculatedandcomparedwiththeunitweight(s)establishedbythelaboratorycompactiontest(s).Becauseofpossiblelowerdensitiescreatedwhenthereisparticleinterference(seePracticeD4718),thepercentcompactionofthecontrolfractionshouldnotbeassumedtorepresentthepercentcompactionofthetotalmaterialinthefield.1.4.3Normally,thecontrolfractionistheminusNo.4sievesizematerialforcohesiveornonfree-drainingmaterialsandtheminus3-i......
【中国标准分类号】:P13
【国际标准分类号】:
【页数】:13P.;A4
【正文语种】:


【英文标准名称】:Softwareengineering-Mockupandprototype-Acategorizationofsoftwaremockupandprototypemodelsandtheiruse
【原文标准名称】:软件工程.模型和原型.软件模型和原型模型的分类及其使用
【标准号】:BSISO/IECTR14759-1999
【标准状态】:现行
【国别】:英国
【发布日期】:2000-05-15
【实施或试行日期】:2000-05-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:分类;计算机程序;计算机软件;计算机;数据处理;信息技术;原型;软件技术
【英文主题词】:Classification;Computerprograms;Computersoftware;Computers;Dataprocessing;Informationtechnology;Prototypes;Softwaretechniques
【摘要】:ThisTechnicalReportappliestoanyprojectwhichusesevolutionarydevelopment.ThisTechnicalReportsetsouttheconceptsassociatedwiththeproductionofmockupsandprototypesbyidentifyinganddescribingthevariousdeliverieswhichresult.TheTechnicalReportiswrittenforuserrepresentatives,developers,managers,qualityassurancepractitionersofsystemsandsoftwareproductsandservices.
【中国标准分类号】:L77
【国际标准分类号】:35_080
【页数】:12P.;A4
【正文语种】:英语