矿柱回收对空区稳定影响分析  

Analysis of influence of pillar recovery on goaf stability

作　　者：张飞[1] 徐晓宏[1] 王创业[1] 张衡[1] 刘德峰[1] 温贺兴[1] 

机构地区：[1]内蒙古科技大学矿业工程学院,内蒙古包头014010

出　　处：《有色金属（矿山部分）》2013年第3期17-20,共4页NONFERROUS METALS(Mining Section）

基　　金：内蒙古自然科学基金项目(2012MS0718)

摘　　要：矿柱回采的研究对采空区处理过程中的围岩稳定性、安全性具有重大意义。内蒙某金矿702矿房已开采完毕,701已开采到1140水平,形成701、702空区,进一步开采1130水平以下矿石或抢采7号临时矿柱,可能存在一定风险。将SURPAC软件建立的三维可视化地质模型导入到FLAC3D软件中进行计算,得到了比较全面的数值计算结果,能够比较准确地反应采空区围岩的应力应变状态,结果显示可回收7号矿柱且回收后采空区状态稳定,对采空区治理及矿山的安全生产具有积极的指导作用。The study of pillar recovery has important slgmimance on the stablhty and salety ot the surrounding rocks in the process of goaf management. The No. 702 mine room of a gold mine in Inner Mongolia has been mined. The No. 701 mine room has reached the level of 1140 and formed the No. 701 and 702 goal. However, there is a risk of exploiting under the 1130 level or exploiting No. 7 temporary pillar. The comprehensive result of calculation has obtained through importing 3D visualization geologic model set by SURPAC into FLAC^D, which accurately showed the stress and strain state of the surrounding rocks in goal According to the calculation result, No. 7 pillar can be recovered and the goal is stable.

关 键 词：矿柱回收 采空区 FLAC3D SURPAC 

分 类 号：TD853.391[矿业工程—金属矿开采]