大水头煤矿电厂灰渣库水体下综放开采可行性研究  

Study on the Feasibility of Caving Mining under the Slag Reservoir Water Body from Power Plant in DaShuiTou Mine

作　　者：汉宁明 杜计平[2] 王宁 李晓映 

机构地区：[1]靖远煤业集团有限公司,甘肃白银730913 [2]中国矿业大学矿业工程学院,江苏徐州221008

出　　处：《矿山测量》2014年第3期21-23,26,共4页Mine Surveying

摘　　要：基于大水头煤矿西三采区煤层赋存、综放开采技术和地面电厂贮渣库水体条件,利用我国煤矿放顶煤开采条件下的导水裂缝带观测成果;采用工程类比的方法;计算了西三采区放顶煤开采后导水裂缝带高度、保护层厚度、保护层与煤厚之比;分析了覆岩的隔水性;预计了坝体变形;论证了灰渣库水体下综放开采的可行性和安全性;研究认为灰渣库下方综放开采是安全的。In the paper,the author calculates the height of the diversion fissure zone,the thickness of the protective layer,the ratio of the protective layer and coal thickness after caving mining in West Third District using engineering analogy method and the diversion fissure zone observation results under the coal mining conditions based on the existent condition of coal seam,the caving mining technology conditions and the ground slag reservoir water body conditions,analyzes the impermeability of the Cover Rocks,expects the dam deformation,demonstrates the feasibility and safety of caving mining under the slag reservoir water body.Studies suggest that the caving mining is safe under the slag reservoir.

关 键 词：综采放顶煤 水体下开采 导水裂缝带高度 保护层厚度 

分 类 号：TD823.83[矿业工程—煤矿开采]