瞬时孔隙水压力作用下的降雨滑坡稳定性响应分析以香港天然降雨

E2003,33():119~136119SCIENCEINCHINASer.ETechnologicalSciences:***(,100101)(,)(,100029).GIS,,.()(),..,.,,.GIS.[1].,2003-08-11,2003-12-01*(:49971066)**E-mail:[e-mail],[2~14].,,,,;,,.,,.,2m..,,[15~20]..,,.,,,[6,7].,[21~24],..,,.,.,[7,23].,Iverson,,.Richard,.,,[7].,[7,25~27].(),,:121~80%,3030%...2/3,,.1/3,[17,18,28~30].,.:(1),;(2);(3);(4).,(1).1,30~40.,5min.GEOTN4/2002m[20],1999,122E33SCIENCEINCHINASer.ETechnologicalSciences.20708090.1999,.19998.1999~20006m,.2000~2001,,.,:,.,1,[20]:1963,,;198411198611:,;1992419921111,3.1992718~19;199311111,,;199982227,Sam,,;2001768,.21.,.().GIS.1γw(kN/m3)9.8C(kPa)2ϕ()38.5γs(kN/m3)19Zmax(m),IZ(m/s)0d(m),D0(m2/s),KZ(m/s),N18:123()()22001611A,20016611,209mm(2),.611,.61170mm(9mm/h),,11:0082.5mm/h.2h120mm.,.2001611,17:00~24:00,18.,,,.,,,.,..()(Zmax)Evans[19],(),.(),(residual)(colluviums).,,.(Zmax).()(d)107m7(1),().,,.2001410.124E33SCIENCEINCHINASer.ETechnologicalSciences()(KZD0)KZD0..,(GEO),.,(),,.,().65~100kPa.200110,1h.10SP1~SP10,1.,.,.,SP5SP6,SP8SP10.24.,,10−4m/s.410−6m/s.SP6SP5,.SP5SP10.SP5.,,.,,(SP5SP62SP5SP6SP8SP10(CDV)(CDV,,)(col)(residual)(m)1.533.01.01.15()25.961023.343432.954029.2059(m/s)1.2×10−67.6×10−61.5×10−41×10−6(m2/s)8×10−41.3×10−37×10−26×10−4(m)~4.8~5m~3.5m~4m:125),.33.13SP5,SP6,SP8SP102001611.,0.00m/s,,.611,.,.,.,,.(SP8)(SP10),().,(SP5SP10),(SP6).,,.,,(SP5,SP10),,,.(SP6SP8),,SP8,.,0kPa,.3.2.61110300mm(30mm/d),10~25kPa..(SP5,1.53m),25kPa.(SP10)SP5.,,,.,,126E33SCIENCEINCHINASer.ETechnologicalSciences,.(SP6,3.0m)10kPa,.,.,,15kPa,(82.5mm/h),.,.32001611,;;.(a)SP5;(b)SP6;(c)SP8;(d)SP103.3,..,SP5SP10:127(8h),,,,..,.(82mm/h)(1m)1h,,,3h.,1~5h,,.,.3.44(5m).,.4(a)SP5;(b)SP6;(c)SP8;(d)SP10128E33SCIENCEINCHINASer.ETechnologicalSciences()SP5SP10,SP5(4(a)).0~3h,,.t=4h,.,,,.,,,..t=10h,3m0.77m,1m0.63m.t=9h,0.5m,,0.5m.t=12h,(82mm/h)1h,1.5m.t=13h,,..,.,,,.t=17h..,,.()SP6SP5.,,,.,t=7h.t=8h(21mm/h),t=9h.t=9h(6.5mm/h),,,..1h.t=11h,0.5m.0.5~2m,.t=13h,t=12h2m,2m,:129=13h,,t=17h,3.5m..,,,.,.,:,,,.1h.,,,.(2m)(5),,,,..,.,.,,.5(2m)4()().,,.,,,.,,,.,(5m).,,.6130E33SCIENCEINCHINASer.ETechnologicalSciences2001611.7(1,23m)-.67,.4.1,(SP5)(6(a),7(a))(SP10)(6(d),7(d)),.SP5.6(a)SP5;(b)SP6;(c)SP8;(d)SP10(0~8h),SP5,.t=9h,(21mm/h,8h15mm/h),.(1.00m),1.00m,20mm/h,:131(1,23m)(a)SP5;(b)SP6;(c)SP8;(d)SP10(t=11h),(1).,t=12h,1.50m1,.(),..,,,.,(),.,(t=16h),1,.t=13h132E33SCIENCEINCHINASer.ETechnologicalSciences2m,t=17h,2.5m.1.2m(0.9).,,2.5m,1m,2m,.,1~2.5m1,(t=18h),(2.5m)1..2m15h.,SP5.1,.,5h,.,.,,,,,.(SP10)SP5,SP5.,,,,.,.,.819998Sam,,,..,,.,,.SP10,:(1).t=17h(2.5m)5h,t=22h,1.(2).4.2(SP6SP8):133(SP10)19998,(SP5SP10)(6(b)6(c),7(b)7(c)).,,,,..,SP8t=10h4.5m.,,,SP6t=12h1m.,.,..SP6t=13h,,2m,2m.,,SP6,,,,(9).134E33SCIENCEINCHINASer.ETechnologicalSciences(SP8),,.,,,.,,.,,,,.9(2m)4.3,.1m,1,.(3m),.,.,,,.(),,,.,..(2m)(9),.5().:135().,,(),..,..().,,.().()().().,.,,,.,,..,.().,,1,,..Evans.1,,..,2002,21(1):75~782CampbellRM.Soilslips,debrisflowsandrainstormsintheSantaMonicaMountains,andVicinity,southernCalifornia,US.GeologicalSurveyProfessionalPaper851,1975.513PiersonTC.Piezometricresponsetorainstormsinforestedhillslopedrainagedepressions.JournalofHydrology(NewZealand),1980,19:1~104PremchittJ,BrandEW,ChenPYM.Rain-inducedlandslidesinHongkong,1972~1992.AsiaEngineer,1994.43~515WilsonRC,DietrichWE.Thecontributionofbedrockgroundwaterflowtostormrunoffandhighporepressuredevelopmentinhollows.ErosionandSedimentationinthePacificRim,IAHSPubl,1987,165:136E33SCIENCEINCHINASer.ETechnologicalSciences49~596IversonRM,MajorJJ.Groundwaterseepagevectorsandthepotentialforhillslopefailureanddebrisflowmobilization.WaterResourcesResearch,1986,22(11):1543~15487IversonRM.Landslidetriggeringbyraininfiltration.WaterResourcesResearch,2000,36(7):1897~1910[DOI]8,,,.GIS.,2003,48(5):507~512[][PDF]9..,1996,17(3):21~2610..,1997,18(2):8~1211..:,1991.33~3612,..,1999,32(1):21~2313,,,.GIS.,2001,33(8):133~14014,..(),2002,24(4):55~6215LumbP.SlopefailuresinHongkong.QuarterlyJournalofEngineeringGeology,1975,8:31~6516BrandEW.RelationshipbetweenrainfallandlandslidesinHongkong.Proc4thIntSympLandslides,Toronto,1984,l:377~38417DaiFC,LeeCF.LandslidecharacteristicsandslopeinstabilitymodelingusingGIS,LantauIsland,HongKong.Geomorphology,2002,42:213~228[DOI]18EvansNC,HuangSW,KingJP.Thenaturalterrainlandslidestudyphaseand.EngineeringOffice,HongKong,1999.128(GEOReportNo.73)19EvansNC,Lam,JS.SoilMoistureconditionsinvegetatedcutslopesandpossibleimplicationsforstability.GeotechnicalEngineeringOffice,HongKong,2002.46(DiscussionnoteDN4/2002)20EvansNC,LamJS.TungChungeastnaturalterrainstudyareagroundmovementandgroundwatermonitoringequipmentandpreliminaryresults.GeotechnicalEngineeringOffice,HongKong,2002.105.(TechnicalnoteDN4/2002)21SidleRC.Atheoreticalmodeloftheeffectsoftimberharvestingonslopestability.WaterResourRes,1992,28:1897~1910[DOI]22MontgomeryDR,DietrichWE,TorresR,etal.Hydr