摘要
为了提高交叉巷道巷帮三角煤柱支护效果,防止煤柱垮落造成巷道交叉处顶板空顶面积大,发生重大顶板事故,大同煤矿集团云冈矿机掘五队通过技术研究,对311盘区21105巷与21105运料绕道交叉点采用人工浇筑技术进行维护。实际应用效果表明,人工砌筑三角煤柱控制了顶板下沉现象,提高了三角煤柱支护效果。
In order to improve the supporting effect of triangular coal pillars on the side of crossing roadway, and to prevent coal pillar collapse from making vacant roof area larger and causing serious roof accidents at roadway intersection, the No.5 mechanical excavation team of Yungang Coal Mine applies manual pouring technology to maintain the intersection of the 21105 lane and the 21105 material conveying bypass in the 311 panel based on technical research. The practical application results show that the roof subsidence is controlled by artificial building of triangular coal pillars, and the supporting effect of triangular coal pillars is improved.
作者
唐鹏
Tang Peng(Yungang Mine, Datong Coal Mine Group, Shanxi Datong 037003)
出处
《山东煤炭科技》
2019年第5期124-125,128,共3页
Shandong Coal Science and Technology
关键词
交叉巷道
三角煤柱
维护技术
应用实践
crossing roadway
triangular coal pillar
maintenance technology
application practice
