基于数值模拟的深部采场稳定性分析  

Stability Analysis of Deep Stope Based on Numerical Simulation

作　　者：路停 魏作安[1,2] 杨永浩[1,3] 吴松 庄孙宁[1,2] LU Ting;WEI Zuo’an;YANG Yonghao;WU Song;ZHANG Sunming(State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing University,Chongqing 400030,China;School of Resources and Safety Engineering,Chongqing University,Chongqing 400030,China;School of Civil Environmental and Mining Engineering,University of Western Australia,Perth 6009,Australia)

机构地区：[1]重庆大学煤矿灾害动力学与控制国家重点实验室,重庆400030 [2]重庆大学资源与安全学院,重庆400030 [3]西澳大学土木工程与资源学院,澳大利亚珀斯市6009

出　　处：《矿业研究与开发》2019年第9期25-29,共5页Mining Research and Development

基　　金：国家重点研发计划项目(2017YFC0804609)

摘　　要：以个旧矿田老厂矿区岩石物理力学实验结果及工程地质条件为基础资料,运用RMR岩体质量评价方法和Hoek-Brown强度准则对矿区围岩体物理力学参数进行估算。结合13-8-7^#矿体房柱法采场初步设计方案建立地下采场稳定性计算模型,通过数值模拟,揭示了矿井进入深部开采后采场的应力场、位移场及塑性区分布,验证了开采方案和采矿方法的可行性。研究成果可为该采场的初步设计及后期开采提供技术支撑。Based on the results of rock physical and mechanical experiments and the engineering geological conditions of the Laochang mine in Gejiu mining area,the physical and mechanical parameters of the surrounding rock mass in the mining area were estimated by the RMR rock mass quality evaluation method and the Hoek-Brown strength criterion.Based on the preliminary design scheme of the 13-8-7^# ore body mined by room-and-pillar method,the calculation model of the stability of underground stope was established.With numerical simulation,the stress field,displacement field and plastic zone distribution of mining field after starting deep mining were revealed.The feasibility of exploitation scheme and mining method was verified.The research results can provide technical support for the preliminary design and post-exploitation of this stope.

关 键 词：数值模拟 地下开采 深部采场 房柱法 稳定性 

分 类 号：TD853[矿业工程—金属矿开采]