大垮塌原矿仓修复治理稳定性分析评价  

Analysis and Evaluation of Restoration and Reinforement of Large Collapsed Ore Bin

作　　者：原野 于世波 王志修 YUAN Ye;YU Shibo;WANG Zhixiu(BGRIMM Technology Group,Beijing 100160,China;National Center for InternationalJoint Research on Green Metal Mining,Beijing 102628,China;School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京矿冶科技集团有限公司,北京100160 [2]国家金属矿绿色开采国际联合研究中心,北京102628 [3]北京科技大学土木与资源工程学院,北京100083

出　　处：《有色金属工程》2019年第7期79-83,共5页Nonferrous Metals Engineering

基　　金：国家自然科学基金资助项目(41602365);国家重点研发计划(2016YFC0600803)~~

摘　　要：原矿仓放矿过程中矿石的冲击和磨损易造成原矿仓的变形、失稳和垮塌。针对这种问题,采用BLSS-PE矿用三维激光扫描仪对某矿山大垮塌原矿仓进行三维激光扫描,精确地建立起原矿仓的三维可视化模型,获得其形态、边界和位置等信息。基于原矿仓的修复方案,运用FLAC3D软件对原矿仓垮塌破坏情况进行数值模拟,掌握了附近围岩的地压分布状况,重点分析了原矿仓修复治理过程中整体结构的稳定性。数值模拟结果表明:采用双控锚索+锚网喷联合支护修复治理方案,原矿仓的破坏得到有效限制,围岩的稳定性也相应提高,同时破坏区域围岩的受力状态得到了改善,保证了作业人员安全,治理效果明显。The impact and wear in the ore mining processis likely to cause deformation, instability and collapse of original ore bin. Aiming at this problem, the 3D laser scanning of the mine's large collapsed ore bin was carried out by BLSS-PE mine 3D laser scanner, and the 3D visualization model of the original mine bin was accurately established to the shape, boundary and location. The numerical simulation results show that the damage control of the original mine is effectively limited by the dual-control anchor cable and anchor-mesh-shot combined support repair scheme,and the stability of the stability of surrounding rock. At the same time, the stress state of the surrounding rock is improved. This scheme ensures the safety of the operators and the effect of the treatment is obvious.

关 键 词：原矿仓 三维扫描 数值模拟 联合支护 

分 类 号：TU457[建筑科学—岩土工程]