浅埋深特厚煤层顶层综采无假顶下分层回采方法研究  

A Fully Mechanized Mining Method for Top Layer of Ultra-thick Coal Seam Without False Roof in Shallow Buried Depth

作　　者：侯志成[1] HOU Zhicheng(Production Management Department of China Shenhua Shendong Coal Group Co.,Ltd.,Shenmu 719315,China)

机构地区：[1]神华神东煤炭集团有限责任公司生产管理部,陕西神木719315

出　　处：《煤矿安全》2018年第A01期102-104,109,共4页Safety in Coal Mines

摘　　要：基于神东矿区活鸡兔井12煤复合区埋深浅、下分层回采无假顶的条件,结合现有开采技术水平,通过理论计算、分析,初步确定采用综放开采是可行的,然后以首采面回采为工程实例进行实践验证,通过对顶煤冒放性、回采率及经济效益综合分析,12煤复合区下分层开采适宜采用综放开采。Based on the conditions of shallow buried depth, lower layer mining without false roof in composite zone of No. 12 coal in Shendong Mining Area Huojitu Coal Mine, combined with the existing mining technology level, through theoretical calculation and analysis, it is feasible to adopt fully mechanized mining. Then the first working face recovery is used as an example to verify the practice. Through comprehensive analysis of caving, recovery rate and economic benefit of top coal, fully mechanized caving mining is suitable for lower layer mining in No.12 coal.

关 键 词：浅埋深 综采放顶煤 无假顶 下分层 回采方法 

分 类 号：TD823.4[矿业工程—煤矿开采]