大水头煤矿电厂灰渣库水体下综放开采的可行性研究  

Fully Mechanized Sublevel Caving of Fly Ash Reservoir under Water Body Power Plant in Dashuitou Coal Mine

作　　者：汉宁明 杜计平[2] 王宁[1] 李晓映 

机构地区：[1]靖远煤业集团有限责任公司,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：《煤》2014年第8期4-6,共3页Coal

摘　　要：基于大水头煤矿西三采区煤层赋存条件、综放开采技术条件和地面电厂储渣库水体条件,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、保护层和煤厚之比,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。With west three coal seam occurrence condition in Dashuitou Coal Mine, fully mechanized caving mining technology and ground power plant slag pool water conditions,water flowing fractured zone observation results under sublevel caving, using engineering analogy methods,water flowing fractured zone height after sublevel caving, protection layer thickness, protective layer and coal thickness ratio, it studied water resisting strata, predicting dam deformation, it demonstrated ash storehouse feasibility and safety in fully mecha- nized sublevel caving mining under water body, it suggested that fly ash reservoir under fully mechanized top coal caving mining is safe.

关 键 词：综放 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]