摘要
根据姚桥煤矿7013工作面临近断层群及不规则残留煤柱影响区的地质条件,对工作面进行分区分级开采。通过对工作面多因素耦合评价及危险区域划分,确定工作面回采时期的危险区域及危险等级。逐级采用不同布置密度的大直径钻孔卸压以及不同强度的顶板预裂爆破,对7013工作面冲击地压防治起到良好的卸压效果。
According to the geological conditions of the 7013 working face near fault group and irregular residual coal pillar influence area in Yaoqiao Coal Mine,the working face is mined by zones and grades.Through the multi factor coupling evaluation and dangerous area division of the working face,the dangerous area and dangerous grade of the working face during the mining period are determined.Large diameter boreholes with different density and roof presplitting blasting with different strength are used step by step to relieve the pressure,which has a good effect on the prevention and control of rock burst in the 7013 working face.
作者
王登高
Wang Denggao(Yaoqiao Coal Mine of Datun Company of China Coal Group,Jiangsu Pei County 221611)
出处
《山东煤炭科技》
2021年第6期172-175,共4页
Shandong Coal Science and Technology
关键词
冲击地压
多因素耦合
卸压措施
效果检验
rock burst
multi factor coupling
pressure relief measures
effect test
