摘要
潞安集团余吾煤业S2206工作面瓦排巷受地质构造及采动影响断面收敛较大,已不能满足工作面生产需要。利用理论计算和FLAC3D数值模拟的方法,分析巷道掘进时期和工作面回采时期巷道围岩应力分布规律和围岩变形规律,确定瓦排巷沿空巷道段掘进位置和巷道支护方案并进行工业性试验,得出新瓦斯排放巷沿空掘巷围岩总体变形量较小,能够满足工作面生产需要,表明沿空巷道围岩控制效果良好,煤岩宽度与支护参数是合理的。
Due to contraction caused by the influence of the geological structure and the mining activity, the roadway for ventilation in the No. S2206 working face of Yuwu Coal coal mine in Lu an Group can not meet the pro-duction needs. Based on the theoretical calculation and FLAC3D numerical simulation, the stress distribution rule of the surrounding rock and the deformation rule of the surrounding rock are analyzed, and the excavation position and roadway support scheme along the roadway are analyzed, and the industrial test conducted. The results show that the control effect of the surrounding rock is good, and the coal and rock width and support parameters are reasonable.
作者
张蒙
葛帅帅
吴晓刚
曹栩
薛凯宏
ZHANG Meng GE Shuaishuai WU Xiaogang CAO Xu XUE Kaihong
出处
《山西焦煤科技》
2017年第3期20-24,共5页
Shanxi Coking Coal Science & Technology
基金
山西省教育科学"十二五"规划课题<高校采矿工程专业毕业设计差异化培养体系建设及其辅助软件研发>(GH-15116)
运城职业技术学院2016年院级科学研究项目<煤矿井下受限空间无线信号传输特性研究>(KY2016-22)
关键词
深部破碎围岩
瓦斯排放巷
围岩变形量
数值模拟
支护
Deep broken rock
Gas discharge roadway
Surrounding rock deformation
Numerical simulation
Support
