近距离煤层工作面停采线合理位置研究

Research on Rational End-mining Line of Mining Face in Close Coal Seams

在井工一矿近距离煤层协同开采的背景下,为了确定4#煤工作面停采线合理位置,对4^#煤14106工作面停采线的位置距本煤层大巷及9^#煤水仓的合理距离的问题进行研究。利用数值计算软件FLAC^3D和现场实测的手段,分析煤体应力分布及矿压显现观测数据,最终确定停采线应与9^#煤水仓等主要巷道保持50 m以上的距离。若不考虑9^#煤水仓的影响,应与本煤层大巷保持60 m以上的距离。

In the context of cooperative coal mining at the close seam of Jinggong Coal Mine,the problem of the reasonable distance between the location of the stop mining line of No.4 coal seam No.14106 working face and the 9 th coal mine water storage bin was studied.Using numerical calculation software FLAC^3D and field measurement methods,the coal stress distribution and mine pressure observation data were analyzed,and finally the stop line was determined to maintain a distance of more than 50 m from the 9^#coal water storage.If you do not consider the influence of the 9^#coal silo,you should maintain a distance of more than 60 m from the main road of the coal seam.