厚煤层停采煤柱留设宽度研究

Study on the Width of Stoping Mining Coal Pillars in Thick Coal Seams

结合具体工程实际,在停采煤柱留设宽度理论计算分析和作业面超前压力监测分析的基础上,运用数值模拟研究,对不同停采煤柱宽度条件下的回采面前方煤体应力分布及回风大巷塑性破坏情况做出探究,从而确定适宜的煤柱留设宽度,希望能为其他矿井相似工程的开展提供帮助。

Combined with the actual situation of the project,and based on the theoretical calculation analysis of the reserved width of stoping mining coal pillars and the monitoring and analysis of the advance pressure of the working face,this paper studied the stress distribution of the coal body in front of the stope face and the plastic failure of the return air roadway under the conditions of different width of stoping mining coal pillars,so as to determine the appropriate reserved width of coal pillars,hoping to provide help for the similar projects in other mines.