基于薄煤层坚硬顶板工作面的沿空留巷技术研究

Gob Side Entry Retaining Technology for Hard-roof Working Face of Thin Coal Seam

在当今这个科技飞速发展的时代,煤矿开采技术进行了多次改进。其中,沿空留巷技术是现如今针对煤矿中薄煤层坚硬顶板工作面开采最有效的手段之一,应用它不仅能提高煤矿的开采效率,还能够解决煤层厚度差异所带来的困难。特别是近几年来,沿空留巷技术不断优化,已经能够为井下的安全生产提供保障。以A矿9号煤层的工作面为例进行分析,对沿空留巷周围的岩石稳定性机理及控制手段进行深入探讨,以期为后期沿空留巷技术的改进提供一定的参考。

In today’s era of rapid technological development, the coal mining technology has been improved many times. Among them, gob side entry retaining technology is one of the most effective mining means for the hard-roof working face of thin coal seam in coal mines nowadays, and its application can not only improve the mining efficiency of coal mines, but also solve the difficulties caused by the difference of coal seam thickness. Especially in recent years, the gob side entry retaining technology has been optimized and has been able to provide guarantee for the safe production underground. Taking the working face of No.9 coal seam of mine A as an example, this paper analyzed the stability mechanism and control means of the rock around the gob side entry in depth, in order to provide some reference for the improvement of gob side entry retaining technology in the later period.