大盘区高应力下矿柱回采稳定性数值模拟  

Numerical Simulation Research on Pillar Stope Stability Under High Stress Conditions in Big Panel

作　　者：郭伟[1,2] 张传信[1,2] 赵继银[1,2] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司 [2]金属矿山安全与健康国家重点实验室

出　　处：《金属矿山》2013年第5期27-30,共4页Metal Mine

摘　　要：在对大团山-580 m中段以上现场地质调查及矿岩取样的基础上,为尽可能地利用现有采准系统,在空区不进行前期充填的情况下,采用FLAC3D数值模拟手段,以回采宽度划分回采方案,对大空区高应力条件下盘区矿柱的部分或全部回采进行稳定性分析,研究矿柱内部应力及位移变化规律,结合前期的岩石力学理论分析,得出最优方案,保证回采工作的顺利进行。Based on the geological survey and samplings above the Datuanshan middle -580 m,and in order to make full use of the current mining preparation system,it is planning to make the stoping scheme based on the stoping width by means of FLAC3D Numerical simulation without the gob backfilling. Then, the stability analysis is made for parts of or all stopes at the lower panel under high stress conditions. Through research on the internal stress and displacement rule of the pillar, and combining with the early rock mechanics theory, the optimum scheme is got to ensure the smooth mining.

关 键 词：大盘区 高应力 FLAC3D 数值模拟矿柱回采 

分 类 号：TD853.391[矿业工程—金属矿开采]