ASTM_D_1194_-_94.pdf

Designation:D119494StandardTestMethodforBearingCapacityofSoilforStaticLoadandSpreadFootings1Thissta ndar disissuedunderthefixeddesignationD1194;thenum berim m ediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anum berinpar enthesesindicatestheyearoflastreapproval.Asuper scriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorr eappr oval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thistestm ethodcoversestim a tionofthebea ringca pa cityofsoilinpla cebym ea nsoffieldloa dingtests.Thistestm ethodca nbeuseda spa rtofaprocedureforsoilinvestiga tionforfounda tiondesign.Itgivesinform a tiononthesoilonlytoadept hequa ltoa bouttwodia m etersofthebea ringpla te,a ndta k esintoa ccountonlypa rtoftheeffectoftim e.1.2Theva luessta tedininch-poundunitsa retober ega rdeda sthesta nda rd.TheSIunitsgiveninpa renthesesa reforinform a tiononly.1.3Thisstandarddoesnotpurporttoaddressal lofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibil ityoftheuserofthisstandardtoestabl ishappro-priatesafetyandheal thpracticesanddeterminetheappl ica-bil ityofregul atoryl imitationspriortouse.2.SignificanceandUse2.1Thistestm ethodisusedtoestim a tethebea ringca pa cityofasoilunderfieldloa dingconditionsforaspecificloa dingpla tea nddepthofembedm ent.Thebea ringca pa cityofasoilisnotsim plyasoilstrengthpa ra m eter,butita lsodependsonthem a gnitudea nddistributionoftheloa d,dim ension,a ndgeom etryoftheloa dingpla tea nddepthofem bedm ent(oreleva tionoftesting).Thisbea ringca pa cityca nbeusedinsoilinvestiga tionsa ndforthedesignoffounda tions.3.Apparat us3.1Load ingPlatformsorBinsofsufficientsizeandstrengthtosupplytheestim a tedtot a lloa drequiredorequiva-lentm ea nsofsupplyingt hetota lloa drea ctiona nticipa ted.3.2Hydraul icorMechanicalJackAssembl yofsufficientca pa cit ytoprovidea ndm a inta inthem a xim umestim a tedloa dforthespecificsoilconditionsinvolved,butnotlesstha n50tons(440k N)ina nyca se,a nda tlea stonedevice,sucha sapressurega ge,electronicloa dcell,orprovingring,form ea-suringtheforceexertedbytheja ck.Theforce-mea suringdevicesshouldbeca pa bleofrecordingtheloa dwitha nerrornotexceeding62%oftheloa dincrem entused.3.3BearingPl atesThreecircula rsteelbea ringpla tes,notlesstha n1in.(25m m)inthick nessa ndva ryingindia m eterfrom12to30in.(305to762m m),includingthem inim uma ndm a xim umdia m eterspecifiedorsqua resteelbea r ingpla tesofequiva lenta rea.Asa na lterna tive,t hr eesm a llconcretefootingsofthesizem entionedorla rgerca nbeca stin-situ.Suchfootingsm ustha veadepthofnotlesstha ntwothirdsoftheirwidth.3.4S ettl ement-RecordingDevices,sucha sdia lga ges,ca-pa bleofm ea suringset tlem entofthetestpla testoa na ccura cyofa tlea st0.01in.(0.25m m).3.5Miscel l aneousApparat us,includingloa dingcolum ns,steelshim s,a ndotherconstructiontoolsa ndequipm entre-quiredforprepa ra tionofthetestpitsa ndloa dinga ppa ra tus.NOTE1Test ingassem bliesm ayvar ywidely,dependingonjobcondit ions,t est ingr equir ement s,andequipmentavailable.Thet est ingassemblyandpr ogr amshouldbeplannedinadvanceandappr ovedbyt hesuper visingengineer,andingener alcanper m itconsider ablelat it udeindet ailswit hint hespecificr equir em ent snot edaboveandout linedint hefollowingt estpr ocedur e.At ypicalassemblyforconduct ingloadt est sisillust r at edinFig.1.4.Pr ocedur e4.1S el ectionofTestAreasBa setheselectionofrepresen-ta tivetesta rea sforbea ringtestsontheresultsofexplora toryboringsa ndont hedesignr equirem entsofthestructure.Unlessotherwisespecified,m a k etheloa dtesta ttheeleva tionoftheproposedfootingsa ndunderthesa m econditionstowhichtheproposedfootingswillbesubjected.Attheselectedeleva tionpla cethebea ringpla tesa tthesa m erela tivedepths(depthsexpressedinpla t edia m eters)a sthea ctua lfooting.NOTE2Forfoot ingsplacedunderper m anent lyexcavat edbasem ent st hedept hoft heact ualfoot ingisconst r uedast hedept hfr omt hebasementlevelord ept hoverwhicht hesur chargeisper manent lyact ing,r at hert hant hedept hfr omt hegr oundsur face.NOTE3Ift hement ionedcondit ionofequalr ela t ivedept hcannotbem etforpr act icalr easons,t het estr esult smustbeint er pr et edbyusingan1Thistestm ethodisunderthejur isdictionofASTMCom m itteeD18onSoilandR ockandisthedirectr esponsibilityofSubcom m itteeD18.08onSpecialandConstr uct ionControlTests.Cur rentedit ionapprovedMar ch15,1994.PublishedMay1994.OriginallypublishedasD119452T.Lastpr eviouseditionD119472(1987)e1.1CopyrightASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.NOTICE:This standard has eit her been superceded and replaced by a new version or discontinued.Cont act ASTM Int ernational(www.ast m.org)for t he lat est information.Copyright by ASTM Intl(all r ights r eserved);Wed Jul 15 23:34:18 EDT 2015Downloaded/print ed byAlder m an Librar y(Alderm an Library)pursua nt t o License Agreem ent.No fur ther repr oductions author ized.appr opr iat