玲珑金矿深部开采岩爆分析  

Analysis of Rock Burst in Deep Mining of Linglong Gold Mine

作　　者：张子健[1,2] 纪洪广[1,2] 张月征[1,2] 陈志杰[1,2] 宋朝阳[1,2] 

机构地区：[1]金属矿山高效开采与安全教育部重点实验室,北京100083 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《金属矿山》2015年第6期134-138,共5页Metal Mine

基　　金：国家自然科学基金项目(编号:51174015);国家重点基础研究发展计划(973计划)项目(编号:2010CB226803)

摘　　要：在金属矿山的深部开采过程中,岩爆的问题时有发生,现阶段对于岩爆问题的致灾原因分析主要集中在高地应力的领域,具有一定的局限性。通过引入能量指标以及冲击危险性应力指标,将岩石自身性质以及岩体所处应力状态等指标引入,丰富了岩爆研究的参数。借助FLAC3D数值分析手段,对玲珑金矿未来深部开采过程中可能面临的岩爆问题进行模拟研究,,初步确定了玲珑金矿岩爆的危险性指数以及岩爆释放能量的大小,明确了岩爆的发生范围,并与现场的实地情况进行对比,较好地吻合了现场的实际情况,这也为玲珑金矿的安全生产、下一步的回采工作及岩爆的安全控制提供了依据。The rock burst often happens in the procedure of deep mining in the metal mine. Studies on the reasons for the rock burst mainly focus on the high in-situ stress field with some limitations. In this study,the energy index and the stress index of shock hazard were introduced with consideration of rock properties and the state of the rock, enriching the parameters of studying rock burst. With the use of FLAC3D numerical simulation method,the problem of rock burst in deep mining in Linglong gold mine was simulated. Then,the risk for rock burst,the volume of the released energy and the scope of rock burst were pri-marily determined,which was in accordance with the actual situation after comparison. Therefore,this method can provide the basis for safe production and the following stoping in Linglong gold mine.

关 键 词：能量指标 冲击危险 深部开采 数值建模 

分 类 号：TU45[建筑科学—岩土工程]