多年冻土层下煤层群上行开采研究  

Research on Ascending Mining in Multiple Coal Seams under Permafrost

作　　者：商铁林[1,2] 索永录[1] 刘玉卫[3] 

机构地区：[1]西安科技大学能源学院,西安710054 [2]榆林学院能源工程学院,陕西榆林719000 [3]郑煤集团技术中心,郑州450042

出　　处：《煤炭技术》2017年第7期20-22,共3页Coal Technology

摘　　要：娘姆特煤矿首采工作面布置在一水平二采区第二区段煤_(20)中,煤_(20)被多层煤层和多年冻土层覆盖。为了研究此种地质条件下煤层群上行开采的可能性,采用比值判别法、三带判别法及围岩平衡判别法进行理论计算判定,并结合计算机数值模拟计算进行分析。The first coal mining face is located in coal_（20） of first level and No.2 mining area in Niangmute coal mine. There are multiple coal seams and permafrost above coal_（20）. In order to study the probability of ascending mining,ratio distinguishing method,three zones distinguishing method and balance of surrounding rocks distinguishing method are used. Furthermore,the probability is studied and analyzed through numerical simulation.

关 键 词：多年冻土层 煤层群 上行开采 

分 类 号：TD823[矿业工程—煤矿开采]