地面物探在岩溶地基工程勘察中的应用Ξ

244Vol.24No.4200512CARSOLOGICASINICADec.2005:1001-4810(2005)04-0338-06X(,541004):,,,,,,(),,,,,,,,,:;;;;:P319.1;TU446:A0,,,()CTCT,[1],(),,,,,,,1,32.5m,54.2m(1),78m8,Ê,::1.36.6m,;21:0.413.5m,,1.36.2m,ZK5ZK8,;22:1.07.9m,41010.0m,,;23:0.58.1m,3166.0m,,ZK2ZK3ZK5;24:3.34.8m,4127.0m,,ZK4ZK7ZK8ZK13;:(D3g)X:(1955-),,,:2005-03-22,(),,27,(1)2m,(2)1Fig.1Locationofengineeringprospectingdrillingholeandplanemapofexplorationresultforthecomprehensivebuildinginagarden,Guilin1.;2.;3.;4.2()Fig.2Locationfordrillsteelandexplorationresult933244:,,2m(1),,,6m,22.1,,[25]CT(CTCT),,,,,,,,,,,,,,,;,,,(6m),,[6],,,,,,[4]2.22.2.1,,,,(2),,(6m),,,,,,,,1M2-1Phto.1Collapseatthejointoftwoaxes,Mand2-1,onthefoundationofthecomprehensivebuildinginagarden,Guilin2Phto.2Thefoundationoftheconstructionsiteinthecomprehensivebuildinginagarden,Guilin0432005,:,2.2.2(),12,19,,1m,0.51.0m,(,),,,,3,,33,5(A1A5,A1A2A3)8B1B8),A1A2A33,1.03.0m;A4A528,0.40.9m,0.6m1.55m;0.5m1.2m408m,1500mös3Fig3.Planemapofphysicalexplorationresultintheengineeringprospectingforacomprehensivebuildinginagarden,Guilin1.;2.;3.;4.;5.;6.;7.;8.,,-,,,,,,,M2-1()(3),,143244:,,,(3)430,4,,();(),,,53,,5(b),,,5(a),4Fig.4Comprehensivecontrastexplanationbyseismicreflectionmethodandhighdensityresistivitysurveymethod5Fig.5Thecomprehensivecontrastexplanationbyseismicrefractionmethodandhighdensityresistivitysurveymethod(3),A1A2A3,,,,,:,;,,,(23%),0.6m24320054,,,,,,;,,,,,,,(),(),,,,,[1],,,.[M].,1993:3248.[2].[A].[C].,2002:179.[3],,,.[J].,2002,13(1):72-75.[4],,,.[J].,1987,6(3):213223.[5],,,.[J].,1992,11(1):5662.[6],,,.[M].,1988:142.APPLICATIONOFTHEGROUNDPHYSICALEXPLORATIONINKARSTFOUNDATIONENGINEERINGPROSPECTINGACaseStudyfromaComprehensiveBuildinginaGardenofGuilinQINZheng2jiao(InstituteofKarstGeology,CAGS,Guilin,Guangxi541004,China)Abstract:Thegeologicalconditionofengineeringfoundationinkarstregionisrelativelycomplicated.Hiddentroubles,suchassoilhole,softsoil,existintheengineeringfoundations.Normalgeologicprospectingmethods,limitedbythefunctionofitself,maynotbeusedtomakeclearlythosehiddentroubleseasily.However,groundphysicalexplorationisaneconomicalmeasure.Therearemanykindsofphysicalexplorationmethods,butonlysuitablewaysbeingchosenandusedaccordingtositesettings,detectingobjectivesandetc.canresultingoodresults.ThefoundationofthecomprehensivebuildinginacertaingardeninGuilinmainlycomposedofredclaywithholedevelopmentinit.Undertheredclay,thelimestonesurfacerisesandfallsstronglyandkarstarewelldeveloped.Accordingtothecharacteristicsofthegeologicconditionandthepitofthefoundation,theshallowrefract,reflectmethodandcoordinationoftheresistivitymethodofhighdensity,areused.Thelocationofthesoftclayandtheholeinitwasfixedsatisfactorily,whichprovidedreliablegeologicbasisforthetreatmentofthebuildingfoundation.Keywords:Clayhole;Softclay;Seismicmethod;Resistivitymethodofhighdensity;Karstfoundation343244: