油页岩矿房柱式开采巷道围岩深部破裂范围确定  

Determination on Deep Broken Zone of Roadway Surrounding Rock in Room and Pillar Oil Shale Mining

作　　者：刘捷[1] 

机构地区：[1]山西大同大学煤炭工程学院,山西大同037003

出　　处：《煤炭技术》2017年第3期73-75,共3页Coal Technology

摘　　要：房柱式井工开采油页岩资源的过程中,巷道的稳定性影响着井下的安全生产。针对巷道围岩稳定性控制,以油页岩矿三井巷道为研究对象,通过地质调研分析巷道的围岩地质概况,借助钻孔窥视系统实测巷道围岩不同深度内部裂隙特征。结合UDEC数值模拟软件分析巷道围岩在开采过程中的受力离层状态,综合确定巷道围岩的破裂范围为0.6~0.7 m。为了充分发挥巷道围岩的自承能力,建议巷道采用三心拱断面。The stability of roadway makes an effect on safety production directly in the process of shale mining with room and pillar method. Aiming at the controlling of roadway surrounding rock ,taking oil shale No.3 mine roadway as a research object. Geological survey of roadway surrounding rock is analyzed through geological research. With the borehole observation system, the internal fracture characteristics of roadway surrounding rock at different depth is analyzed. Combined with UDED numerical simulation software,the force separation state of roadway surrounding rock in the mining process is analyzed . Integrated to determine that the range of roadway broken zone is 0.6-0.7 m. It is suggested that the section of roadway could be designed to be three hearts arch in order to promote its carrying capacity.

关 键 词：油页岩 房柱式开采 UDEC模拟 钻孔窥视 破裂范围 

分 类 号：TD324[矿业工程—矿井建设] TD833