Numerical Simulation of Slope Stability under Combined Surface and Underground Mining

摘要：

The deformation and failure mechanism of slope under combined surface and underground mining is much more complicated than that under single open-pit mining because of the effect by the two kinds of mining at the same time. In this paper, according to the actual progress of Pingzhuang Western Open-pit and based on strength reduction method, the stability of slope under simple surface mining and combined surface and underground mining were simulated with RFPA-SRM respectively. By analysis of the simulated result, it can be known that shear stress increases in rock masses, deformation aggravates, strength decreases highly because new fractures generate and contact with preexisting fractures, and the stability of slope under combined surface and underground mining reduces compared with that under simple surface mining. It was proved that changing of stress environment is the basic reason why slope stability under combined surface and underground mining inclines.

关键词： combined surface and underground mining slope stability RFPA-SRM safety factor

作者: CAO Lanzhu WANG Dong SONG Ziling

作者单位: College of Resource and Environment Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 2155-2160

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）