摘要
根据阳煤集团平定裕泰煤业有限公司15103综采工作面支架压力监测数据,结合泥岩顶板垮落规律和沿空工作面特点,建立工作面初次来压与周期来压计算方法,并运用现场观测与理论分析手段,对沿空煤柱工作面顶板来压步距进行探讨,研究发现:工作面回采至24m时顶板开始初次来压,回采至30.5m时初次来压结束,初次来压步距为24m;所划分的10个工作面测点所得周期来压步距平均值约为15.13m,得出工作面目前的周期来压步距约为15.13m。
According to the monitoring data of support pressure in 15103 fully mechanized coal face of Yangquan Coal Industry Group Pingding Yutai Coal Industry Co.,Ltd.,combined with the law of mudstone roof caving and the characteristics of gob-side face,the calculation method of initial pressure and periodic pressure is established,and the roof pressure step of gob-side coal pillar face is determined by field observation and theoretical analysis.The study shows that the roof pressure begins at the first time when the working face is stoped to 24 m,and ends at the first time when the working face is stoped to 30.5 M.The initial weighting step is 24 M.The average weighting step of 10 working face measuring points is about 15.13 m,and the current periodic weighting step is about 15.13 M.
作者
张文龙
ZHANG Wenlong(Yangquan coal industry (Group) Ping Ding Yutai Coal Industry Co.,Ltd.,Yangquan Shanxi 045000)
出处
《煤矿现代化》
2019年第5期136-138,141,共4页
Coal Mine Modernization
关键词
泥岩顶板
沿空工作面
周期来压
初次来压
mudstone roof
gob-side working face along
periodic weighting
the first weighting
