数值计算在采空区稳定性评价中的应用

Application of numerical calculation method in evaluating the stope stability of ore body

针对某矿体采空区不断扩大和变化 ,导致采空区围岩极不稳定 ,安全事故隐患极大的情况 ,采用ANSYS有限元数值计算分析了该矿体采空区不稳定部位 ,此外还分析了围岩不稳定的影响因素。根据研究成果采取了相应的技术措施 ,提高了采空区的安全感 ,收到了很好的安全、社会。

Due to the progressive volume and changes of stope in ore body, the stability of rock wall is getting worse, and resulting high possibility of catastrophe. This article analyzes the fluctuating laws of underground pressure and the stability of rock wall during mining by using FEM with ANSYS program. Based on this, the key parts of instability and the main influence factors have been pointed out. This research provides a theoretical foundation for adopting the necessary preventive measures, which has attained great safe benefit and social and economical results.