黄土坡滑坡深部变形防治方案探讨

16120053TheChineseJournalofGeologicalHazardandControlVol.16No.1Mar.2005(,443002):,,,,,:;;;:100328035(2005)012053204:P642122:B:2004202205;:2004207225:(1967),,.1,,,,,,135m,,54104m2118,1112,,,,,,,,,,,,()(),,,,,,,,,2211,,,,3215104m2,225515104m3,6914m,95127m;3216104m2,199212104m3,61111m,91184m,250260m,3216104m2,135219104m3,,4115m,86164m;,3811104m2,133315104m3,,35m,58m,180600m11358km2,693411104m3212(),,,,202315kNPm3,,16172018kNPm3©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.;01481,11041,0160185,-,(),-,()818,(c)33124kPa,-,15,c33kPa,:1715,c1916kPa;,:1615(T2b2),(T2b31)--,(T2b32)213NACP,Mohr2coulomb,-,,ItascaFLAC3D:;,513m10m,:,175m145m,(),,,,,:,11031123,135m175m,,01931105,30m,0190198,135m175m01790192,,5%10%2142003420046,22GPS,8,2,,,200369,,1970m,911817125mm,24mm1012200311139m,2004133,200420623046mm,1612631104mm,3125614mm,,,3,,,,()(),(),,,(),,,,,,,,:(),;(),45ZHONGGUODIZHIZAIHAIYUFANGZHIXUEBAO2005©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,(),(),,,2318,1988,50cm,1235m,70m12166m20130mm,01152119m,,,812m,203300mm,1m,23m,,,-,,7112m,,Lizzi19834411,,,;,,,(),,,,,412[1,2]41211Aboshi,,(1):Ssp=(1-M)Cu+MSpcos(1):Ssp;M;Cu;Sp;Cu;Sp,,,,1CuSp,,Ssp(C250350kPa,2535;300400kPa,2030)1Table1ThemechanicalstrengthofgeotechnicalreinforcedbodiesC(kPa)()341401127001000203040050030403006002611281017203612551:©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.41212,,,Ssp,,,41213(),(1),(1),(=0),(1)(2),sp=(1-M)s+Mp(2)(=C+tan),,(3),,M=(sp-p)P(p-s)=[(Csp-Cs)+(sptansp-stans)h]P[(Cp-Cs)+(ptanp-stans)h](3)41214,,(),,(),215,,,(),,,,300m,200m,150mm600mm(),()58m,7080m,3m,1018,2350,2350,,,,,,,,413,,,,,,(),,,,,,,,,5,,,:[1].()[A].[C].:,19991120-124.[2],,.[J].,2002,(4)16:151-153.(60)65ZHONGGUODIZHIZAIHAIYUFANGZHIXUEBAO2005©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.AnalysisontheinducedfactorsoflandslideinDingnanCountyofJiangxiProvinceBIANXiao2geng(1.ChinaUniversityofGeology,Wuhan430074,China;2.InstitutionofEnvironmentalGeologyofJiangXiProvince,Nanchang330012,China)Abstract:LandslidesdistributewidelyinDinnanCountyofJiangxiProvince.From1990to2002,therewere283landslidestookplace.Thescaleofthelandslideiscurrentlysmall,butthelosingislarge.Mostlandslidesareinducedbyrainfall.RainstormisoftenhappenedandtheprecipitationislargefromApriltoJuneeveryyear.Inthesedays,agreatdealoflandslidestookplace.Besidesrainfall,thefactorsinducinglandslideincludegeomorphy,typeofrockandsoilmass,geologicalstructure,structuraltypeofrockandsoilmass,artificialslope,etc.Medium2lowmountainandhillcoverthemainareasinthiscounty,wherehasthecharacteristicsoflargegradient,mainrocktypeofmagmaticrockandmetamorphicrock,rockmassesaremostlycrashedandeasytobeweathered,largethicknessofeluvial2declivoussoilsandstronglyweatheredzone,widedistributionoffaults.Theresidentsbuildhousesbydiggingmountainslopes,thusanumberofhighandsteepartificialslopehavebeenformed.Allofthesearethereasonsofagreatdealoflandslideshavingbeentakenplacedinthiscounty.Keywords:DingnanCountyofJiangxiProvince;landslide;formationfactor;conditionanalysis(56)ApproachonthecontrolplanfordeformationindepthofHuangtupoLandslide,BadongCountyinHubeiProvinceJIANGHong2bin(HubeiCenterofGeologicalHazardsControl,Yichang443002,China)Abstract:AccordingtotheinvestigationoftheHuangtupolandslidearea,thepossibilityofresearchforthepreventionandcontrolandthecognitionofengineeringmanagementatthesiteinrecentyears,thepaperstudiesonthedistributioncharacteristic,materialcomposition,stabilityanddeformationcharacteristicofthelandslide.Forthepropertiesoflargethickness,highstrengthofthelandslidemassandtheobviousdeepdeformationintherecentdays,basedontheCoulombLaw,theauthorputsforwardaprimarycontrolplaninthispaperofadoptingtherockandsoilreinforcementtopreventthedeepslidingofthelandslide.Keywords:approach;rockandsoilreinforcement;landslidemass;CoulombLaw06ZHONGGUODIZHIZAIHAIYUFANGZHIXUEBAO2005©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.