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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
Based on the comprehensive analysis of the rock mechanics properties and the characteristics of ground pressure in deep mining, a constitutive model of elastic-plastic theory suitable for deep mining is proposed and applied to the numerical optimization of the structural parameters of the deep-hole production in Dongguashan. The calculation model is designed by the orthogonal test principle and the yield function is used as the rock mass failure criterion under complex stress conditions. The numerical analysis results provide a scientific basis for the prediction and control of stope stability in the deep mining of Dongguashan