陕北保水区地方煤矿分层开采覆岩运移规律模拟研究  

Simulation Study of Overlying Strata Movement Laws at Layer Mining in Northern Shaanxi Local Coal Mines Lying Protected Areas

作　　者：邵小平[1] 李鑫杰[1] 武军涛[1] 杨文化[1] 

机构地区：[1]西安科技大学能源学院教育部西部矿山开采及灾害治理重点实验室,西安710054

出　　处：《煤炭技术》2015年第6期1-4,共4页Coal Technology

基　　金：陕西省教育厅科研计划项目(13JS064);科技部国际合作项目(2012DEG71060)

摘　　要：通过模拟实验对白鹭煤矿分层开采覆岩运移规律进行了深入研究。研究表明:第1分层开采,顶板岩层仅在切眼和工作面推采结束处各产生1条发育一般的至地表的裂隙,保水开采第1分层可行;第2分层开采,可通过在切眼和工作面推采结束处留设隔离煤柱阻隔贯通至地表竖向间隙的水体实现安全开采;第3分层开采,在开采区域靠切眼和工作面推进结束处,各自2条贯通至地表裂缝间岩层水平间隙发育明显,并与导水裂隙带内裂隙沟通,无论从保水开采还是防治水的需要,都应暂不开采。Has deeply studied movement laws of overlying strata for water preserved mining layer working face at Bailu coal mine through simulation experiment. The research showed when mining the first layer, the roof strata each produced a ordinary developed crack to the surface at cut and working face lying end of mining, which proved mining the first layer is feasible. When mining the second layer,the safety mining could be realized through saving isolated coal pillars which cut off the water of vertical crack connecting to the surface at cut and working face lying end of mining. While mining the third layer, the development of horizontal strata gaps which was between each two connecting to the surface was obvious at cut and working face lying end of mining, and they communicated the cracks of the fractured zone conducting water, so whether from the need of water preserved mining or water control, we should not mine the third layer.

关 键 词：分层开采 保水开采 隔离煤柱 导水裂隙带 

分 类 号：TD823[矿业工程—煤矿开采] TD325[矿业工程—矿山开采]