回采巷道锚网索支护解除对工作面侧向煤壁稳定性的影响  

Effect of Bolt-mesh-cable Releasing to the Stability of Side of Working Face in Mining Coal Roadway

作　　者：刘少杰[1] 茅献彪[2] 

机构地区：[1]中国矿业大学力学与建筑工程学院,江苏徐州市221008 [2]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州市221008

出　　处：《矿业研究与开发》2011年第6期41-45,共5页Mining Research and Development

摘　　要：采用FLAC2D软件,对回采巷道锚网索支护解除前后工作面侧向煤壁的稳定性进行了数值模拟,得到了锚网索支护解除前后工作面侧向煤壁支承压力、变形和塑性区分布等特征。结果表明:回采巷道锚网索支护解除以后工作面侧向煤壁支承压力、变形量和塑性区都会明显减小,并且随着悬顶距的增大,减小的幅度越来越大。The stability of side of working face in mining coal roadway before and after bolt-mesh-cable support releasing is simulated with FLAC2D.The characters of side coal pillar such as bearing pressure,the displacement and plastic zone are acquired.The results show that these parameters above are decreased significantly after bolt-mesh-cable support releasing,and the more the length of hanging roof,the more the decrease amplitude.

关 键 词：回采巷道 锚网索支护 支护解除 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]