摘要
针对裴沟煤矿31采区工作面回采时采出率低、巷道掘进与维护困难等问题,通过现场勘查、理论分析、相似模拟等研究手段,对比分析了错层位内错10 m巷道布置形式与原有巷道布置形式的优缺点。结果表明:错层位内错10 m巷道布置形式可提高工作面回采率9.9%,错层位巷道布置系统接续工作面回采巷道底板处应力远小于原有巷道布置系统的应力,巷道掘进与维护容易,最终肯定了错层位巷道布置系统在三软厚煤层的适用性。
Aiming at problems of low mining rate and difficult excavation and maintenance for roadway at the working face in 31 mining area of Peigou Coal Mine,this paper analyzes the advantages and disadvantages of the stagger arrangement and the original arrangement form by means of field investigation,theoretical analysis and similar simulation.The results show that the stagger arrangement can improve mining rate of 9.9%.The stress at the bottom of the mining roadway is much less than that of the original roadway,and roadway excavation and maintenance is easy.Finally,the stagger arrangement in the three-soft thick coal seam is confirmed.
出处
《煤矿安全》
CAS
北大核心
2018年第1期65-68,72,共5页
Safety in Coal Mines
关键词
错层位巷道布置
相似模拟
回采率
应力场
三软厚煤层
stagger roadway arrangement
similar simulation
mining rate
stress field
three-soft thick coal seam
