摘要
12307工作面回采中,发现相邻采空区密闭喷浆层脱落,通过观察密闭前支护单体的移近量分析喷浆层脱落原因,制定防范措施,防止发生煤矿安全事故。
12307 during the mining of the working face,it was found that the closed shotcrete layer was falling off in the adjacent goaf,and the reasons for the shotcreting were analyzed by observing the proximity of the closed support,and the preventive measures were formulated to prevent coal mine safety accidents.
出处
《内蒙古煤炭经济》
2018年第4期103-103,110,共2页
Inner Mongolia Coal Economy
关键词
采动影响
岩性
支护强度
脱落
Mining influence
The lithology
Support strength
Fall off
