摘要
针对孙村煤矿井下巷道掘进量大、采掘衔接紧张情况,对2414工作面轨道切顶卸压沿空留巷技术方案进行分析,进行了沿空留巷技术实践应用。现场实施后切顶卸压自动成巷PU监测系统监测结果表明,该轨道巷围岩整体变形较小,巷道围岩稳定性较好,留巷效果较好。
In view of the large amount of underground roadway excavation and the tight connection between mining and excavation in Suncun Coal Mine,the paper analyzes the technical scheme of gob side entry retaining with rail roof cutting and pressure relief in 2414 working face,and carries out the practical application of gob side entry retaining technology.After the implementation on site,the PU monitoring system for automatic roadway forming with roof cutting and pressure relief shows that the overall deformation of the surrounding rock of the rail roadway is small,the stability of the surrounding rock of the roadway is good,and the effect of roadway retaining is good.
作者
于静波
Yu Jingbo(Suncun Coal Mine of Xinwen Mining Group Co.,Ltd.,Shandong Xintai 271219)
出处
《山东煤炭科技》
2021年第5期29-30,33,共3页
Shandong Coal Science and Technology
关键词
顺槽
切顶
留巷
channel
top cutting
retaining lane
