Experimental Study on Parameters of Duncan-Chang Model for Cement-soil
The conventional triaxial tests for cement-soil show stronger soften characteristics of cement-soil under low confining pressure.The soften character is weaken as confining pressure decrease.For adopting Duncan-Chang hyperbola model to obtain parameters of cement-soil,the model cannot include the stress-strain soften characteristics of cement-soil,and must be discussed.The paper studies on parameters of Duncan-Chang model using generalized Hooke law and nonlinear elastic theory.The researches show the parameters of k and n are unrelated to soften characteristics of cement-soil; the relation of Rf and σ3 is given by the soften characteristics,Rf influence the soften process directly.The calculation method could be used in E-u model,and has good practical value.
cement-soil Duncan-Chang model tangent modulus of elasticity break ratio
QIAN Cai-fu SONG Xin-jiang WU Jie LI Wei
Anhui and Huaihe River Water Resources Research Institute China;College of Civil and Transportation Anhui and Huaihe River Water Resources Research Institute China
国际会议
厦门
英文
403-409
2012-12-28（万方平台首次上网日期，不代表论文的发表时间）