摘要
根据断裂力学和损伤力学的理论和方法，用岩体宏观损伤张量和岩体损伤应变分析了裂隙体对岩体应力、应变的影响。通过岩体宏观裂隙的断裂扩展研究，建立岩体损伤演化方程，对地下硐室稳定性进行有限元数值计算。
According to the theory and method of damage mechanics and fracture mechanics,the effect of joints on the stress and strain in rock mass are analyzed by the macro damage tensor and damage strain of rock mass respectively.The developed equation of rock mass damage is established through the study on fracture propagation of rock mass macro joints,and the finite element numerical analysis for the stability of underground cavern is carried out,and the effect of joint damage on stability are analyzed and discussed.
出处
《金属矿山》
CAS
北大核心
1997年第3期15-19,共5页
Metal Mine
基金
国家自然科学基金
武汉工业大学科学基金
关键词
地下硐室
有限元
稳定性
裂隙分布
Underground cavern,Macro damage of rock mass,Closure effect of joint,Finite element
