松软煤层巷道破坏原因及控制策略  

Failure Causes and Control Strategies of Soft Coal Seam Roadway

作　　者：王桀 WANG Jie(Shangzhuang Coal Industry Co.,Ltd.,Shanxi Lu'an Environmental Energy Development Co.,Ltd.,Xiangyuan 046200,Shanxi,China)

机构地区：[1]山西潞安环能上庄煤业有限公司,山西襄垣046200

出　　处：《能源与节能》2020年第11期33-34,77,共3页Energy and Energy Conservation

摘　　要：针对松软煤层围岩变形严重、支护困难的问题,以A矿21311工作面为工程背景,利用极限自稳隐形拱对巷道破坏原因进行分析。巷道两帮是影响平衡拱范围的主要因素,依据强帮固顶的原则,采用锚网索联合支护技术对巷道进行支护。实践表明,支护效果良好,达到了预期的支护效果,为该矿其他工作面回采巷道的支护提供了借鉴。In view of the serious deformation of surrounding rock and the difficulty of supporting in the soft coal seam,taking 21311 working face of A Coal Mine as the engineering background,this paper used the self-stabilized limit hidden arch to analyze the failure causes of roadway.The two sides of roadway are the main factors affecting the scope of balance arch.According to the principle of strong side and fixed roof,the combined support technology of bolt,mesh and cable was used to support the roadway.The practice shows that the support effect is good and achieves the expected support effect,which provides reference for the support of other working faces in the mine.

关 键 词：松软煤层 极限自稳隐形拱 联合支护 

分 类 号：TD353[矿业工程—矿井建设]