摘要
木瓜煤矿现阶段开采的10号煤层上部为9号煤层采空区,为提高10号煤层的采出率,解决矿井采掘接替紧张的问题,设计在10煤层的首采工作面应用巷旁充填沿空留巷技术,通过采用数值模拟的方法,结合10-100工作面具体的地质条件,研究确定了留巷巷旁充填体的参数,并确定留巷期间加强支护和顶板管理方案,现场应用期间通过围岩位移监测得知,留巷效果良好。
In order to improve the recovery rate of the No.10 Coal Seam and solve the problem of mining and replacing tension,the upper part of the No.10 coal seam in Mugua Coal Mine is mined out area of the No.9 Coal Seam.The technology of roadway-side filling along gob is applied in the first mining face of the No.10 coal seam,and the parameters of roadway-side filling are determined by using numerical simulation method and combining with the specific geological conditions of 10-100 coal face.The scheme of strengthening support and roof management during roadway retaining is determined.The effect of Roadway retaining is good by monitoring the displacement of surrounding rock during field application.
作者
李军军
LI Jun-jun(Mugua Coal Mine of Huozhou Coal & Electricity Group Lliang shan Coal & Electricity Co., Ltd.,Fangshan 033100,China)
出处
《煤》
2020年第1期12-14,共3页
Coal
关键词
近距离煤层
数值模拟
巷旁充填体
close coal seam
numerical simulation
filling body beside roadway
