综放工作面冲击危险性评价及防治措施  

Impact Risk Assessment and Prevention Measures of Fully Mechanized Caving Face

作　　者：钱红亮 赵晓凡 QIAN Hongliang;ZHAO Xiaofan(Gencun Coal Mine,Henan Dayou Energy Co.,Ltd.,Sanmenxia472400,China;School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo454000,China)

机构地区：[1]河南大有能源股份有限公司耿村煤矿,河南三门峡472400 [2]河南理工大学能源科学与工程学院,河南焦作454000

出　　处：《煤》2022年第10期29-33,共5页Coal

摘　　要：巨厚砾岩层下特厚煤层综放开采可能诱发综放面或回采巷道冲击地压。基于耿村煤矿13200综放面地质采矿条件,采用综合指数法对综放面冲击危险性进行评价,得出13200综放面地质因素和开采技术因素对冲击地压危险的影响指数分别为0.57、0.62,综合判断冲击危险性综合指数为0.62,13200综放面冲击地压类型属于中等冲击等级。提出联合卸压手段,并通过微震监测进行现场验证。Fully mechanized caving mining of extremely thick coal seam under extremely thick conglomerate layer may induce rock burst in fully mechanized caving face or mining roadway.Based on the geological and mining conditions of 13200 fully mechanized caving face of Gengcun Coal Mine, the comprehensive index method is used to evaluate the impact risk of fully mechanized caving face.The impact indexes of geological factors and mining technology factors on rock burst risk of 13200 fully mechanized caving face are 0.57 and 0.62, respectively, and the comprehensive judgment impact risk comprehensive index is 0.62.The rock burst type of 13200 fully mechanized caving face belongs to medium impact grade.The combined pressure relief method is proposed and verified by microseismic monitoring.

关 键 词：特厚煤层 放顶煤开采 冲击危险性 微震监测 

分 类 号：TD324[矿业工程—矿井建设]