沿空巷道超前深孔预裂爆破卸压技术探索  

Exploration on Pressure Telief Technology of Advance Deep Hole Pre-splitting Blasting along Gob Roadway

作　　者：罗胜兵[1] 邓秘 LUO ShengBing;DENG Mi(Zhangji Coal Mine of Huainan Mining Group,Anhui Huainan 232174)

机构地区：[1]淮南矿业集团张集煤矿,安徽淮南232174

出　　处：《煤矿现代化》2020年第4期163-164,共2页Coal Mine Modernization

摘　　要：淮南矿业集团张集煤矿1412A工作面回采初期,运输顺槽受沿空及采动影响,超前支护段矿压显现剧烈,行人通道不足,超前支架、转载机和端头支架拉移困难,严重影响工作面安全生产。为此,我们借鉴“110”工法中切顶自成巷技术原理,提出将运顺侧长悬臂切断成短悬臂的思想,结合现场实际深入开展了超前深孔预裂爆破卸压工程实践,形成了具有张集矿特色的沿空巷道卸压技术。In the early stage of stoping at 1412A working face of zhangji coal mine of huainan mining group,the transportation gateway is af-fected by gob and mining movement,and the mining pressure in advance support section is severe.The lack of pedestrian passage makes it difficult to pull forward support,transfer machine and end support,which seriously affects the safety production of working face.Therefore,by referring to the technical principle of roof cutting and roadway formation in"110"construction method,we put forward the idea of cutting the long cantilever on the moving side into the short cantilever,and carried out the pressure relief engineering practice of advanced deep hole pre-splitting blasting in combination with the field practice,forming the roadway pressure relief technology with zhang-gathering characteris-tics.

关 键 词：沿空 预裂爆破 悬臂 卸压 

分 类 号：TD353[矿业工程—矿井建设]