摘要
针对大同"强冲击地压"条件下回收采区煤柱危险程度高、难度大的特点,经过理论[1-4]研究,对同家梁矿311采区回煤柱工作面进行了钻屑法监测[5],根据钻屑监测结果找出了冲击地压可能发生的关键部位,并采取了有效的爆破卸压的解危手段,达到了利用综采技术进行采区煤柱回收的目的。
Based on the strong danger and great difficulty characteristics of coal pillars mining under strong ground pressure in Datong coal district,the observations on the no. 311 coal face in Tongjia coal mine were carried out by the method of drilling bits. The key zone of ground pressure prone was determined and the effective unloading measures by blasting were also taken to mining coal pillars by fully mechanized mining technique.
出处
《内蒙古煤炭经济》
2014年第2期183-185,共3页
Inner Mongolia Coal Economy
基金
国家自然科学基金项目(51374045
51374046
51274051)
辽宁省教育厅科学研究一般项目(L2013474)
国网能源开发有限公司科技创新项目(FMISC1207-07)
关键词
残留煤柱
大同两硬条件
强冲击地压
爆破卸压
remained coal pillars
two strong conditions of Datong
strong ground pressure
unloading pressure by blasting
