以大柳塔矿22103工作面开采压架灾害为工程研究背景,通过设置5种不同宽度的上覆煤柱,采用理论分析和数值模拟的方法,分析对比工作面煤壁内应力状态,得出上覆煤柱宽度对开采压架的影响规律及工作面过上覆煤柱过程中的煤壁应力变化规律,提出合理的防治措施。 Based on the background of CBM disaster in the mining work face of 22103 in Daliudi Mine, five different width overlying coal pillars are set up, and the theoretical analysis and numerical simulation are used to analyze and contrast the stress state in the coal wall of working face. The influence law of the width of the coal pillar on the pressure ram and the law of coal wall stress in the process of covering the coal pillar are put forward and the reasonable prevention and cure measures are put forward.