大采高沿空巷道围岩稳定性数值模拟  

Numerical Simulation on Surrounding Rock Stability of Gob-side Entry in Large Height Mining Face

作　　者：谢福星 董世卓 刘洋 梁智鹏 郭鹏 XIE Fuxing;DONG Shizhuo;LIU Yang;LIANG Zhipeng;GUO Peng(Institute of Mine Construction,Tiandi Seienee ＆ Technology Co.,Ltd.,Beijing 100013,China;Beijing China Coal Mine Engineering Co.,Ltd.,Be ijing 100013,China)

机构地区：[1]天地科技建井研究院,北京100013 [2]北京中煤矿山工程有限公司,北京100013

出　　处：《煤矿安全》2018年第11期215-219,223,共6页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51604114);中国煤炭科工集团有限公司科技创新创业资金专项资助项目(2018MS025)

摘　　要：为研究影响大采高工作面沿空巷道围岩稳定性的主导因素,以羊场湾矿130205沿空巷道为工程背景,运用FLAC3D数值模拟软件,探究煤柱宽度、工作面采高及采动剧烈程度对沿空巷道围岩稳定性的影响规律。研究表明:煤柱宽度、采动剧烈程度对围岩稳定性影响较显著,采高的影响程度相对较小,且沿空巷道围岩应力和变形分布呈明显不对称性,并随煤柱宽度的减小、采动强度的递增愈加显著。In order to study the leading factors affecting the stability of surrounding rock in gob-side entry at large height mining working face, taking 130205 gob-side entry in Yangchangwan Mine as an example, based on FLAC3 Dnumerical simulation software, the influence laws of the coal pillar width, the height of the working face and mining strength on the stability of the surrounding rock are explored. Research shows that the influential intensity of the coal pillar width and mining strength are stronger than the height of the working face, and the stress and deformation distribution of surrounding rock is obvious asymmetry.The asymmetry is more obvious when the width of the coal pillar is smaller and the mining strength is stronger.

关 键 词：大采高 沿空巷道 数值模拟 不对称支护 围岩稳定性 

分 类 号：TD322.4[矿业工程—矿井建设]