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《Journal of Hydraulic Engineering》 2005-04
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Stability analysis of rock slope based on random damage mechanics

ZHANG Wo-hua, JIN Wei-liang, LI Hong-bo (Zhejiang University, Hangzhou310027,China)  
Based on the investigation on statistical characteristics of cracks in rock specimens, the random damage of rock is simulated by means of Monte-Carlo Method. It is found that the probabilistic distribution of random damage variables accord with β distribution. The mean and standard deviation of damage variables can be estimated according to the statistical data of effective modulus obtained from test for damaged rock. The effective Mohr-Coulomb shear strength parameters of the damaged rock can be expressed as a function describing the damage state. On this basis, the failure criterion of damaged rock mass expressed by the effective stress, pore pressure and damage state variables is proposed. This criterion can be used to evaluate the probability and reliability of rock slope stability due to random damage.
【Fund】: 国家自然科学研究基金项目(50379046);; 教育部博士点特别研究基金资助研究项目(A50221)
【CateGory Index】: TU452
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