河神庙矿开拓巷道矿柱宽度数值模拟研究  

Numerical Simulation Study on Pillar Widths of Development Roadway in Heshenmiao Mine

作　　者：渠贵君[1,2] 宋选民[1] 吴浩[1] 梁晋元 

机构地区：[1]太原理工大学采矿工艺研究所,山西太原030024 [2]大同市焦煤矿有限责任公司,山西朔州038300 [3]山西汾西矿业有限责任公司,山西介休032000

出　　处：《中州煤炭》2015年第1期4-7,共4页Zhongzhou Coal

基　　金：山西省科技攻关项目(200631118-02)

摘　　要：基于河神庙矿深部（1 000 m）开采实际情况,分别选取25,30,35,40,45,50 m六种不同的巷道矿柱宽度,通过FLAC3D软件模拟研究了矿柱宽度变化时矿柱的最大垂直应力和最大水平应力分布规律、在掘进过程中运输巷道矿柱上方垂直应力的分布规律以及轨道大巷的顶底板移近量和两帮移近量变化规律。根据数值模拟结果,确定河神庙矿开拓大巷的最优留设矿柱宽度为40 m。Based on the actual situation of H eshenmiao Mine （1 000 m） , six different pillar widths （25,30,35,40,45,50 m ）were selected to study the laws of stress distribution and surrounding rock change by FLAC3D simulation software. The study contents mainly include the distribution laws of maximum vertical stress and maximum horizontal stress of pillars when the pillar widths are changed, the distribution laws of vertical stress above the pillar column of main roadway in the process of driving, the changing laws of the roof-to- floor convergence and two side convergence of main track roadway in the process of driving. According to the results of simulation,40 m was determined to be the optimal pillar width for the development roadway in Heshenmiao Mine.

关 键 词：FLAC3D 数值模拟 开拓大巷 矿柱宽度 

分 类 号：TD322[矿业工程—矿井建设]