采动诱导巷道围岩失稳及其控制技术  

Surrounding Rock Instability of Mining Induced Roadway and Control Technology

作　　者：陈杰[1,2] 荆升国[1,2] 王波[1,2] 宋浬永 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]深部煤炭资源开采教育部重点实验室,江苏徐州221116

出　　处：《煤矿安全》2013年第11期130-133,共4页Safety in Coal Mines

摘　　要：任楼煤矿-720轨道大巷受上覆煤层工作面开采影响强烈,巷道变形严重。对此,采用理论分析与数值模拟相结合的方法,分析上覆煤层工作面开采对底板巷道围岩稳定性影响规律,研究采动诱导巷道围岩失稳机理。应用支护结构补偿技术,提出适合此类采动诱导巷道的高强稳定型锚网索支护技术,并进行现场工业性试验。对上覆工作面回采期间,试验巷道围岩变形情况进行长期观测,掌握工作面回采期间巷道围岩变形特征,正确评价支护技术及参数的合理性。As -720 track roadway of Renlou Coal Mine had serious deformation, which was influenced strongly by overlying coal seam working face mining. Therefore, by the means of the combining method of theoretical analysis and numerical simulation, the influence law of overlying coal seam working face mining on floor roadway surrounding rock stability had been analyzed, and the surrounding rock instability mechanism of mining induced roadway was studied. By using support structure compensation technology, high strength stable bolt - mesh - anchor support technology suitable for this kind of the mining induced roadway was put forward, and the industrial test was done. During the overlying working face mining, a long - time observation of test roadway surrounding rock deformation was done, which could master the deformation characteristics of roadway surrounding rock during working face mining, and correctly evaluate support technology and the rationality of the parameters.

关 键 词：采动诱导巷道 数值模拟 结构补偿 锚网索支护 

分 类 号：TD322.4[矿业工程—矿井建设]