充填法两步回采采场结构参数优化  

Stope Structure Parameters Optimization for Backfill by Two-step Stoping

作　　者：秦健春[1] 王新民[1] 骆小芳[2] 吴鹏[1] 陈五九 陈宪龙 

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083 [2]湖南大学电气与信息工程学院,湖南长沙410082 [3]马钢集团姑山矿业有限公司,安徽当涂243100

出　　处：《矿冶工程》2012年第4期1-4,共4页Mining and Metallurgical Engineering

基　　金：科技部"十一五"科技支撑计划课题(2008BAB32B03)

摘　　要：后观音山铁矿露天转地下交接工作已基本完成,为了选取合理的采场结构参数,根据矿岩与充填体力学参数,运用ANSYS有限元分析软件,对充填法两步回采的采场结构参数进行了优化。利用ANSYS模拟不同采场的结构参数、采场顶板厚度及多采场回采模式下的采场应力状态和变形情况,综合分析模拟结果,最终确定最优方案。模拟结果表明:采场结构参数为20 m矿柱、30 m矿房的模型为最佳方案。该结果在矿山应用中取得了很好的效果,确保了地下矿产资源回采的安全性和高效性。The transition from open-pit to underground mining has been completed in Houguanyin Mountain Iron Mine. The structure parameters were optimized with ANSYS （finite element analysis） software for the stope using backfill method with two-step stoping, based on mechanical parameters of rock mass and filling body. Structure parameters for various stopes, stope roof thickness, as well as the stope stress state and stope shape deformation under multi-stope operation were all simulated with ANSYS. The optimal parameters have been established based on the comprehensive analysis results. Results showed that the optimal stope should be with pillars and rooms, respectively, 20 meters and 30 meters long. This design has got good result in the mine application, ensuring the safety and efficiency in underground mineral exploitation.

关 键 词：两步回采 充填 结构参数 数值模拟 ANSYS 

分 类 号：TD852[矿业工程—金属矿开采]