新建煤矿回采巷道顶板支护研究及应用  

Research and Application of Roadway Roof Support in Xinjian Coal Mine

作　　者：关显华[1] 付明超 陈维新[1] 

机构地区：[1]黑龙江科技大学矿业研究院,黑龙江哈尔滨150022 [2]宁阳煤炭工业管理局,山东泰安271400

出　　处：《煤》2014年第10期25-27,共3页Coal

摘　　要：针对新建矿回采巷道维护难的问题,结合新建矿的实际情况将回采巷道顶板视为薄板结构,对破坏机理进行了力学分析并制定了预应力锚杆加金属网联合支护方案,实施后顶板下沉量为59 mm,与巷道高度之比为2%,两帮总移近量为222 mm,与巷道掘进跨度之比为6%,位移范围合理。结果表明:该支护方法工艺简单且能有效控制围岩变形,保证了矿井的安全高效生产。According to extraction roadway maintenance difficult problem, combined with the actual situation of new mineral extraction roadway roof as thin plate structure in Xinjian Coal Mine, the mechanics analysis of failure mechanism and combination supporting scheme formulated the prestressed bolt with wire mesh, the roof subsidence after implementation is 59 mm, and the height of roadway ra- tio is 2% ,the two nearer total amount is 222 mm,the roadway drivage span ratio is 6% ,the displacement range is reasonable. Results show that the support method process is simple, and it can effectively control the deformation of the surrounding rock, guarantee the safe and efficient production of mine.

关 键 词：回采巷道 软岩顶板 锚网支护 

分 类 号：TD353[矿业工程—矿井建设]