采动影响下终采线合理位置的模拟研究  

Simulation of terminal line position under mining

作　　者：王玉和[1] 陈文国[1] 张普[1] 陈国栋[1] 孙延贺[1] 周恒 

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]国投哈密能源开发有限责任公司,新疆哈密839000

出　　处：《煤炭工程》2016年第5期65-67,70,共4页Coal Engineering

摘　　要：为确定工作面终采线的合理位置,结合理论计算与FLAC^(3D)模拟,研究不同终采线位置条件下巷道围岩的应力分布及变形破坏规律。结果表明:71311工作面超前支承压力的峰值位置距煤壁约为8m,影响范围在20m左右;当终采线与71312上区段平巷的距离为20m时,顶底板破坏深度趋于稳定;在考虑到安全生产及多采煤的情况下,确定终采线与上区段平巷的距离为20m。In order to determine the reasonable terminal line position in coal face,theoretical calculation and FLAC3 D simulation are applied to study the stress distribution and deformation damage law of roadway surrounding rock with different terminal line position. The results show that the position of abutment pressure peak is about 8m from coal wall in 71311 coal face,with the influence range of 20m; when the distance between the terminal line and upper district sublevel roadway is 20 m, the damage depth of roof and floor becomes stable, which is determined as the reasonable distance considering production safety and amount.

关 键 词：终采线 超前支承压力 围岩 应力分布 支承压力 

分 类 号：TD323[矿业工程—矿井建设]