典型文献
Cylindrical cavity expansion responses in anisotropic unsaturated soils under plane stress condition
文献摘要：
In this paper,an anisotropic critical state model for saturated soils was extended to unsaturated con-ditions by introducing suction into its yield function.Combining this model with soil-water characteristic curves related to porosity ratio was employed to characterize the coupled hydromechanical behavior of unsaturated anisotropic soil.Based on the plane stress condition,the problem of the cylindrical cavity expansion in unsaturated anisotropic soils was transformed into first-order differential equations using the Lagrangian description.The equations were solved as an initial value problem using the Runge-Kutta algorithm,which can reflect the soil-water retention behavior during cavity expansion.Parametric an-alyses were conducted to investigate the influences of overconsolidation ratio(OCR),suction,and degree of saturation on the expansion responses of a cylindrical cavity in unsaturated anisotropic soil under plane stress condition.The results show that the above factors have obvious influences on the cavity responses,and the plane strain solution tends to overestimate expansion pressure and degree of satu-ration but underestimates suction around the cavity compared to the proposed plane stress solution.The theoretical model proposed in this paper provides a reasonable and effective method for simulating pile installation and soil pressure gauge tests near the ground surface of the unsaturated soils.
文献关键词：
中图分类号：
作者姓名：
Haohua Chen;Xiaolin Weng;Lele Hou;Dean Sun
作者机构：
Department of Geotechnical Engineering,Tongji University,Shanghai,200092,China;Department of Civil and Architectural Engineering and Mechanics,University of Arizona,Tucson,AZ,85721,USA;School of Highway,Chang'an University,Xi'an,710064,China;Department of Civil Engineering,Shanghai University,Shanghai,200444,China
文献出处：
引用格式：
[1]Haohua Chen;Xiaolin Weng;Lele Hou;Dean Sun-.Cylindrical cavity expansion responses in anisotropic unsaturated soils under plane stress condition)[J].岩石力学与岩土工程学报（英文版）,2022(06):1989-2002
A类：
hydromechanical,alyses,overconsolidation
B类：
Cylindrical,cavity,expansion,responses,anisotropic,unsaturated,soils,plane,stress,condition,In,this,paper,critical,state,model,was,extended,ditions,by,introducing,suction,into,its,yield,function,Combining,water,characteristic,curves,related,porosity,employed,characterize,coupled,behavior,Based,problem,cylindrical,transformed,first,order,differential,equations,using,Lagrangian,description,were,solved,initial,value,Runge,Kutta,algorithm,which,can,reflect,retention,during,Parametric,conducted,investigate,influences,OCR,degree,saturation,results,show,that,above,factors,have,obvious,strain,solution,tends,overestimate,pressure,but,underestimates,around,compared,proposed,theoretical,provides,reasonable,effective,method,simulating,pile,installation,gauge,tests,near,ground,surface
AB值：
0.486675
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