深井高应力极软煤层沿空掘进围岩控制  

Surrounding Rock Control of Gob-side Driving in Deep Mine High Stress Extremely Soft Coal Seam

作　　者：陈平原[1] 李景润 

机构地区：[1]淮北矿业集团公司童亭煤矿,安徽淮北235000

出　　处：《内蒙古煤炭经济》2018年第24期41-43,共3页Inner Mongolia Coal Economy

摘　　要：近年来,随着采煤机械化的不断发展,矿井产能逐年攀升,掘进工作面生产准备压力日趋紧迫,矿井普遍存在资源紧张和采掘接续失调的问题。采用沿空掘巷技术是提高资源回收率的重要手段,但在深井地质条件复杂的极软煤层沿空掘进巷道遇到巷道变形严重、围岩稳定性难以控制的支护问题。本文针对某矿风巷沿空掘巷遇到的围岩稳定性难以控制问题,提出优化煤柱尺寸、增强初期支护强度、采取非对称不等强支护及复合支护的支护方案,具有一定的借鉴意义。With the continuous development of mining mechanization in recent years,mine productivity has been increasing year by year,production preparation pressure of heading face is becoming more and more pressing,and there are problems of resource shortage and imbalance between mining and excavation.Gob-side entry driving technology is an important means to improve resource recovery rate,but the geological conditions of deep wells are extremely complicated.Driving roadway along goaf in soft coal seam meets the problems of serious deformation of roadway and difficult control of surrounding rock stability.Aiming at the problem that the stability of surrounding rock is difficult to control in gob-side entry driving in a mine,this paper puts forward the support scheme of optimizing coal pillar size,enhancing initial support strength,adopting asymmetric unequal strength support and composite support,which has certain reference significance.

关 键 词：极软煤层 沿空掘进 围岩控制 

分 类 号：F406.3[经济管理—产业经济] TD353[矿业工程—矿井建设]