6_Slope_stability_plaxis_geo5_comparation_gorog

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1、Nat.HazardsEarthSyst.Sci.,7,417–422,2007NaturalHazardswww.nat-hazards-earth-syst-sci.net/7/417/2007/©Author(s)2007.ThisworkislicensedandEarthunderaCreativeCommonsLicense.SystemSciencesSlopestabilityassessmentofweatheredclaybyusingfielddataandcomputermodelling:ac

2、asestudyfromBudapestP.Gor¨ogand¨A.T´or¨ok¨BudapestUniversityofTechnologyandEconomics,DepartmentofConstructionMaterialsandEngineeringGeology,Stoczeku.2.,H-1111Budapest,HungaryReceived:11October2005–Revised:19December2006–Accepted:1June2007–Published:15June2007Ab

3、stract.Afuturedevelopmentsiteofahousingestate,antheforcedutilizationofinherentlyunstableslopesandclayabandoned-brickyardwithclayeyslopeswasstudiedinde-pitsoftencauselandslidesandthusslopestabilityanalysestailstoassessslopestabilityandtocalculatethefactorofofsuc

4、hareasareessentialforurbanplanningandsitedevel-safety.TheOligoceneclay,theformerrawmaterial,isdi-opment.videdintotwodifferentgeotechnicalunitsintheclaypit.Toassessthepresentstateofabandonedquarriesorpits,Theloweroneconsistsofgreyimpermeableclayswhilethefieldsurv

5、eysofdiscontinuitysurfaces,weatheringmapsandupperunitischaracterisedbyyellowishweatheredclayhav-shearstrengthtestsareused(KocaandKinsal,2004).Slopeingalimitedpermeability.Atsomelocalitiesthetopmoststabilityanalysesofrecentlandslidesandpotentialslidear-weathered

6、claylayersarecoveredbyloess,andslopede-easincludeonsitemonitoringbyusingextensiometersandbris.Partsoftheformerpitwerealsousedasalandfillsite.tensiometers(Okamotoetal.,2004),piezometers(AngelietTheslopestabilityanalyseswereperformedbasedonbore-al.,1998)aswellasco

7、llectingdataonprecipitationandlo-holeinformationandlaboratoryanalysesinordertoprovidecalgeology(CalcaterraandSanto2004).Themineralogicalnecessaryengineeringgeologicaldataforfurthersitedevel-andgeotechnicalparametersofclayeyslopesareobtainedbyopmentandurbanplann

8、ing.TwogeotechnicalcodesPlaxislaboratorytesting(CalcaterraandSanto,2004)andconven-andGeo4wereusedtomodeltheslopefailuresandassesstionalparameterssuchasLL(liquidlimit),PL(pla