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,,(,100041):-,,(DuncanChang),E-BE,EB:-;;;:TU458.4:B:10045716(2009)060009031-,:,,E-K-G;,Cambridge,,,,,;,,,K-Gpq,()v()s,KGEK-G[1-3]DuncanChangKndner[4]E-[5]DuncanDuncanChang,,E,,-,,0.5,E-,,,24,,21,334.6m7363kg127cm,69cm3.2(2)(2)(),,54.2m,1333.64m,387104m3,282.4104m3,17.5km219822,,1,6.0m,23;1.0m1,231200m,,457t,15.5kN/m3500,18.9cm,9cm,,18.9cm,,,4,,,920096,,Duncan,K-G,E-E-B(E-E-B)E-E-B,,,,,,[6]2EB2.1,3,,:1-3=1/(a+b1)(1):(1-3);11-3,;ab(1):a+b1=1/(1-3)(2)11/(1-3),11/(1-3),1/(1-3)a,bEi,10,(1):Ei=d(1-3)/d1|10=1/a(3)1,(1-3)u=1/(a+b1)|1=1/b,(Kandner)(Zelasko)1963:1-3=1/(1/Ei+1/(1-3)u)2.2Ei(Janbu)1963,,:Ei=KPa(3/Pa)n(4):Pa;Kn,lg(Ei/Pa)lg(3/Pa),K,n2.3EtE1(1-3),EtEt=9(1-3)91=a(a+b1)(5)(1-3)f,(1-3)u,:Rf=(1-3)f(1-3)u(6)Rf,0.751.0,:(1-3)f=2ccos+23sin/(1-sin)(7):c(3)(4)(5)(6)(7),(Duncan)(Chang)1970:Et=KPa(3Pa)n[1-Rf(1-sin)2ccos+23sin(1-3)]2(8)2.4Bt,,t,,Bt,:Bt=KbPa(3Pa)m:Kb,lg(Bt/Palg(3/Pa)Bt,1-3=0.7(1-3)f3[7]3.1--,,,cRfKnKbm7(CD)3.98cm,2,4100kPa200kPa300kPa400kPa,(1-3),,,,15%,,c=00120096[3],34-,,,-,-,,,,15%,70%,3.2[8],,,.:e-p,Kn.,:k0=1-sin()k0=0.95-sin():0=K0/(1+K0),,:r=0+(0.49-0)S0:;;;;,,,,;;,,[8],E-,E-,-,,4,,,,,,:[1],.KG[C]//..:,2001:36242.[2].[M].:,1987.[3],.K2G[J].,2005,26(9):136921373.[4]KondnerRL.Hyperbolic.StressstainResponse:Cohe2siveSoils[J].JournaloftheSoilMechanicsandFounda2tionsDivision.ASCE,1963,89(SM1):1152143.[5]DuncanJM,ChangC.Y.NonlinearanalysisofStressandStraininSoils[J].JournaloftheSoilMechanicsandFoun2dationsDivision.ASCE,1970,96(SM5):162921653.[6].[J].,2000,17(2):37240.[7],,,..-[J].,2006,3:122.[8],.[J].,2001,26(3):15218.TheResearchandEngineeringApplicationofDuncan2ChangModelJIANGTing2ting,GAOZhi2jun,WANGYun2xia(CollegeofArchitecture,NorthChinaUniversityofTechnolo2gy,Beijing100041China)Abstract:Severalmethodstorepresentthestress2strainrelation2shipofsoilhavebeendiscovered,includingelasticandelastic2plasticmodels.Innonlinearitymodel,Duncan2Changmodelhavebeenusedmostwidelywithmanykindsofadvantages,embra2cinginitialmodelandcorrectedE2Bmodel.Inacalculationofroadbedsubsidence,itusedE2model,inthecalculationofthecrushsanddeformationofTaklamakandesert.Keywords:Duncan2Chang;researchingpresentsituation;nonlin2earityelasticmodel;engineeringapplication.1120096