STUDY OF CONSTITUTIVE MODEL FOR SINGLE INFILLED JOINTED ROCK MASS
(1. School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,China;2. School of Civil
Engineering,Hohai University,Nanjing,Jiangsu 210098,China)
Abstract:According to the previous direct shear test results of infilled joint,the influence of the ratio of infilled thickness to asperity height on mechanical parameters of joint is detailly studied. On the basis of analyzing several kinds of shear strength models for jointed rock mass,the constitutive model for increment-type stress and displacement of infilled joint rock mass is proposed by using the elasto-plastic theory;and the hardening and softening characteristics of joint shear stress-displacement curve are especially studied. Through the comparison of shear curves of existing test sites,the results indicate that the proposed model curve agrees better with the experimental data,which identifies the correctness of the model.
肖卫国1,兑关锁1,朱玉萍1,陈铁林1,任青文2 . 充填单节理岩体本构模型研究[J]. 岩石力学与工程学报, 2010, 29(S2): 3463-3468.
XIAO Weiguo1,DUI Guansuo1,ZHU Yuping1,CHEN Tielin1,REN Qingwen2. STUDY OF CONSTITUTIVE MODEL FOR SINGLE INFILLED JOINTED ROCK MASS. , 2010, 29(S2): 3463-3468.
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