摘要
文章对冲击地压的形成进行了分析,以中煤大同塔山煤矿为例,为了防止冲击地压对已知采空区下部煤层的开采产生影响,基于该矿井的地质条件以及开采条件,提出一种特定的近距离开采上覆煤柱深孔预裂卸压爆破和深孔松动卸压爆破防冲技术,并对煤矿井下爆破安全性进行分析,利用数值模拟并结合工作面具体情况确定了炮孔布置方案及爆破参数。
This paper analyzes the formation of rock burst.Taking Tashan Coal Mine of Datong as an example,in order to prevent the impact of rock burst on the mining of the lower coal seam in the known goaf,based on the geological conditions and mining conditions of the mine,this paper puts forward a specific deep hole presplitting pressure relief blasting and deep hole loosening pressure relief blasting anti scour technology for short distance mining of overlying coal pillar,and carries out the research on underground blasting Based on the analysis of safety,the blasting hole layout scheme and blasting parameters are determined by numerical simulation combined with the specific situation of the working face.
作者
许琳
张磊
XU Lin;ZHANG Lei(Coal Engineering of Shanxi Datong University,Datong 037003,China)
出处
《煤》
2021年第6期19-21,24,共4页
Coal
基金
大同市重点研发计划项目(2019024)
山西大同大学2020年研究生教育创新项目(20CX15)。
关键词
冲击地压
坚硬顶板
煤柱卸压
爆破
rock burst
hard roof
coal pillar pressure relief
blasting
