Designation:D6151/D6151M−15StandardPracticeforUsingHollow-StemAugersforGeotechnicalExplorationandSoilSampling1ThisstandardisissuedunderthefixeddesignationD6151/D6151M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThispracticecovershowtoobtainsoilsamplesusingHollow-StemAuger(HSA)samplingsystemsanduseofhollow-stemaugerdrillingmethodsforgeotechnicalexplora-tion.Thispracticeaddresseshowtoobtainsoilsamplessuitableforengineeringpropertiestesting.1.2Inmostgeotechnicalexplorations,Hollow-StemAuger(HSA)drillingiscombinedwithothersamplingmethods.Splitbarrelpenetrationtests(TestMethodD1586)areoftenper-formedtoprovideestimatesofengineeringpropertiesofsoils.Thin-walltube(PracticeD1587)andring-linedbarrelsamples(PracticeD3550)arealsofrequentlytaken.Thispracticediscussesholepreparationforthesesamplingevents.Forinformationonthesamplingprocess,consulttherelatedstandards.Otherinsitutests,suchasthevaneshearTestMethodD2573,canbeperformedbelowthebaseoftheboringbyaccessthroughthedrillstring.OtherdrillingmethodsaresummarizedinGuideD6286.PracticeD1452describessolidstemaugers.1.3Thispracticedoesnotincludeconsiderationsforgeoen-vironmentalsitecharacterizationsandinstallationofmonitor-ingwellswhichareaddressedinGuideD5784.1.4Thispracticeoffersasetofinstructionsforperformingoneormorespecificoperations.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthispracticemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject’smanyuniqueaspects.Theword“Standard”inthetitleofthispracticemeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.1....
