【摘要】 综合分析了深井开采岩石力学性质和地压显现的特点 ,在此基础上提出了适宜于深井开采的弹塑性理论本构模型 ,并应用于冬瓜山深井开采场结构参数的数值优选。运用正交试验原理设计计算模型 ,并采用屈服函数作为复杂应力条件下的岩体破坏判据 ,数值分析的结果给冬瓜山深井开采采场稳定性的预测和控制提供了科学依据更多还原

【Abstract】 A comprehensive analysis is made of rock mechanical properties and crustal stress appearing in deep well mining. Based on this the authors have developed a tructural model for elastic plastic theory suitable for deep well mining. The model has been applied to numerical optimization of structural parameters of stopes of Dongguashan Mine′s deep well mining. In the paper, a computational mode is designed using the orthogonal experiment principle and yield function is used as the criterion for rock damage by complicated stress. The results obtained by numerical simulation can be used as scientific basis for prediction and control of the stability of stopes in Dongguashan Mine′s deep well mining.更多还原