城市垃圾填埋场地震稳定分析及永久位移计算

232Vol.23,No.220013(204212)ACTASEISMOLOGICASINICAMar.,2001:025323782(2001)0220204209X(310027),.,,.,,;,Newmark,,,..:P315.9:A,,,.,.,,.1988Kettle,35,(Mitchelletal.,1990),,,,OII().,.MatasovicKavazanjian(1998)OII.GöGmaxKöKmax,.(Seed,1979;Morochinik,Bordet,1998),.,,Newmark(1965).BrayRathje(1998)Soydemir(1995)ChangX(59678020)(RC9609).2000207210,2000211213,2000212213.©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(1995)Newmark,.,,,();.,,Newmark.1,,..1.1(2000).,Duncan2Zhang,.Duncan2Zhang,Es=KPaR3Pan1-Rf(1-sinU)(R1-R3)2cosU+2R3sinU(1),R1,R3;Rf=(R1-R3)fö(R1-R3)ult;k,n.(R1-R3)f;(R1-R3)ult.1.2McEnroe(1989).,,.1.,,.12,:,;,;r,.,12.,Q5022:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.;r;q;A;d;L.k;kc.:0,x=0,Q=0;-1,x=L,dhdx=-1.dQdx=r-q(2),m=r-q,Y=yöL,X=xöL,YL=yLöL,Xl=xLöL=1,Y=yöL,R=mö(kcos2A).,(1),RS,3RS24X=R(1-S+R)R-SZ+Z21ö2.expSMtan-12R-SM-SMtan-12Z-SMM=4R-S2(3)RS24X=R(1-S+R)R-SZ+Z21ö2õ2R-S-N2R-S+N2Z-S+N2Z-S-NTN=S2-4RT=S2N(4)R=S24-lnX=lnZ-S2+SS-2Z+C3(5)3,.1.3Biot,[M][Db]+[C][Da]+[K][D]+[Q][u]=[F1][Q]T[Da]+[H][u]=[F2](6),[M],[K],[Q],[H],[F1][F2].(2),Newmark.,.,,;,.,GöGmaxKöKmaxMatasovicKavazanjian(1998).Gmax=Kmax(Dm)1ö2=QV2s(7),(7)Kmax,Augello(1998),60223©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.Kmax0.24.:$ug=Rm(1-mSL)PHNL1-NNL1öHNNL1ö2H-1$N(8),NL=10b-(SavöR0)öa;R0;Sav;N$N;$N$t,$N=Neqt$t;Rm;m,1.11.3;H,0.7.22.1,,,n,AFA=1liiSfidli1liiSnidli=iSfidliiSnidli(9),FAA;SfiA,M2C,Sfi=ci+RnitanUi;Sni,Rni;ci,Ui;li.,,.,A(),Fs=ni=1Sfidlini=1Snidli(10)2.2Reame(),.,1.0,,,35.1965,Newmark(Augelloetal.,1998),,,.,1(Kc),,.Seed(1979),,Newmark.,,,,.7022:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved..,,,,,,.35,,,(:;),,:U=ni=1Snidli-ni=1SfidliöI(11)I,Acad14.,DDi,:D=ni=1Di=ni=1kUd2t(12),n.,Seed(1979).3500m3,1992,102m,400t,,.3,1.2.1ökNm-3ökNm-3öcms-1CökPaUö()vsöms-1195%3.6510.012.11.510-36.0176080285%3.2510.012.01.110-311.51770100370%2.510.011.90.7510-315.517.5901902:,,.3.134.8,38480223©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1233.341.32,2.(2000)(),(),..53.2,10s,500,5.,0.1g,1.0,,1.03;0.2g,500,121.0,0.89;0.3g,311.0,0.68;0.4g,861.0,0.54.0.3g0.4g,63(3).7.6(a)0.3g;(b)0.4g3,.0.3g,61.3%(1.0)3,1248.4%;0.4g,3(1.0)9022:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.7(a)0.3g;(b)0.4g30.3g1230.4g123öm47.7,65.933.9,40.074.2,126.233.9,62.136.4,74.165.4,115.7öm63.537.4494.147.458.393.17.611071.281079.341071.661073.071071.4010896421161029.0%19.4%12.9%24.4%18.6%11.6%0.76cm4.86cm0.45cm3.93cm1.70cm2.06cm10.4cm31.3cm13.2cm30.9cm9.28cm14.8cm:,kgm2;1.0;1.0.54.7%,23,.,Newmark.[(11)(12)],,3.3,,.,1(30.48cm),0.3g,0.73,5cm,,1.0,;0.4g,.,,1.0,.,,,(),,.:1.0,,;,;,,;,,,,01223©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.;,,(3),Newmark..4,,,:(1),.,Newmark,.(2)1.0,.(3),,.(4),,.(5),,.;,.,,,.2000.[J].,33(3):9297,,.2000.[J].,22(1):3539AugelloAJ,BrayJD,AbrahamsonNA,etal.1998.Dynamicpropertiesofsolidwastebasedonback2analysisofOIIland2fill[J].JGeotechGeonvinEngrg,ASCE,124(3):211222BrayJD,RathjeEM.1998.Earthquake2InducedDisplacementsofsolid2wastelandfills[J].JGeotechGeonvinEngrg,AS2CE,124(3):242253ChangTzyyshiou,WeiBaozhu,HallKM,etal.1995.Earthquake2inducedlateraldisplacementofalandfill[A].ThirdInter2nationalConferenceonRecentAdvancesinGeotechnicalEarthquakeEngineeringandSoilDynamics[C].StLouis,Mis2souri,Vol.1,539543MitchellJK,SeedRB,SeedHB.1990.Kettlemanhillswastelandfillslopefailure.I:Liner2systemproperties[J].JGeotechEngrg,ASCE,116(4):647668MorochinikV,BardetJP.1998.IdentificationofdynamicpropertiesofOIILandfill[J].JGeotechGeonvinEngrg,ASCE,124(3):186196MatasovicN,KavazanjianE.1998.CyclicCharacterizationofOIILandfillsolidwaste[J].JGeotechGeonvinEngrg,ASCE,124(3):196210McEnroeBM.1989.Maximumsaturateddepthoverlandfillliner[J].JEnvirEngrg,ASCE,119(2):262270NewmarkNM.1965.Effectsofearthquakesondamsandembankments[J].Gotechnique,15(2):139160SeedRB,MitchellJK,SeedHB.1990.Kettlemanhillswastelandfillslopefailure.Ê:StabilityAnalyses[J].JGeotechEngrg,ASCE,116(4):689690SeedHB.1979.Considerationintheearquakedesignofearthandrockfilldams[J].Gotchnique,29(3):2152631122:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.SoydemirC.1995.SeismicDesignoflandfillsforNEunitedstates[A].ThirdInternationalConferenceonRecentAdvancesinGeotechnicalEarthquakeEngineeringandSoilDynamics[C].StLouis,Missouri,Vol.1,457462STABILITYANDPERMANENTDISPLACEMENTSANALYSISOFWASTELANDDURINGEARTHQUAKESKeHanChenYunminLingDaoshengWenZhentong(GeotechnicalInstituteofZhejiangUniversity,Hangzhou,310027,China)Abstract:Accordingtotheresultsofexperimentsonthemunicipalsolidwaste(MSW),ase2riesofformulaarededucedtocalculatetheleachatefree2facedheadlinecurve.BymeansofstaticanddynamicFEM,thestabilityofawastelandduringearthquakesisanalyzed.Itisdemonstratedthatthepositionsofthemostdangerousslidingsurfacesduringearthquakesarefairlystable.Basedontheabovefindings,thispaperdevelopedtheNewmarkmethodbyin2creasingtheprecisiontoreckonthepermanentdeformationofwastelandsduringearthquakes.Themethodpresentedinthepaperisnoton