8939工作面过空巷安全回采技术研究
|
摘要
忻州窑矿11-2#层西二盘区8939工作面为一孤岛综采放顶煤工作面。8939工作面回采过程中需要过空巷。在空巷支设五排(排间距为0.8m×1.0m)单体柱补强原支护措施,顺利完成了回采。利用KJ216A监测系统和YHY-60B矿山压力连续记录仪,对顶板进行监测和管理。
The 8939 working face in the west 2 nd panning area of No. 11-2 layer of Xinzhouyao Coal Mine is an island fully mechanized top coal mining and caving working face. 8939 working face needs to cross the goaf in the process of mining. Five rows of single pillars(row spacing is 0.8 m × 1.0 m) were installed in the empty roadway to reinforce the original support measures, and the mining was successfully completed. The roof is monitored and managed by KJ216 A monitoring system and YHY-60 B mine pressure continuous recorder.
The 8939 working face in the west 2 nd panning area of No. 11-2 layer of Xinzhouyao Coal Mine is an island fully mechanized top coal mining and caving working face. 8939 working face needs to cross the goaf in the process of mining. Five rows of single pillars(row spacing is 0.8 m × 1.0 m) were installed in the empty roadway to reinforce the original support measures, and the mining was successfully completed. The roof is monitored and managed by KJ216 A monitoring system and YHY-60 B mine pressure continuous recorder.
引文
[1]温庆华,周海丰.大采高综采工作面过空巷关键技术研究[J].煤炭工程,2009(01):54-56.
[2]曹义勇.西曲矿22502综采工作面过空巷技术研究[J].煤炭技术,2009,28(01):48-50.
[3]张寅,郝相龙,张吉雄.“孤岛”工作面回采巷道围岩变形的控制[J].采矿与安全工程学报,2003,20(03):44-45.
[4]吴红雷.综采大旋转过空巷技术实践[J].山西焦煤科技,2006(03):17-19.
[5]李鑫,苏海,李宗涛,等.煤柱回收工作面过空巷技术[J].煤炭科学技术,2012,40(11):45-47.
[2]曹义勇.西曲矿22502综采工作面过空巷技术研究[J].煤炭技术,2009,28(01):48-50.
[3]张寅,郝相龙,张吉雄.“孤岛”工作面回采巷道围岩变形的控制[J].采矿与安全工程学报,2003,20(03):44-45.
[4]吴红雷.综采大旋转过空巷技术实践[J].山西焦煤科技,2006(03):17-19.
[5]李鑫,苏海,李宗涛,等.煤柱回收工作面过空巷技术[J].煤炭科学技术,2012,40(11):45-47.