近距离煤层复杂采空区下工作面安全开采影响因素分析

Influence Factors Analysis for Safety Mining Face Under Complex Goaf in Close Distance Seams

根据近距离煤层开采的特点,以石圪台煤矿31202-1工作面为例,结合工作面井上下位置关系及周边采掘部署情况,对多层采空区以及小煤窑复杂采空区多重影响下,工作面安全开采的影响因素进行了科学分析,从本工作面"两道两线"和联络巷重点防控区域、上覆22煤和12上煤采空区、小煤窑采空区3个方面分析了31202-1工作面开采受复杂采空区影响的程度。

According to the characteristics of close distance coal seam mining, taking the 31202-1 working face in Shigetai Coal Mine as an example, combined with the position relationship of the working face and the deployment of the surrounding mining,under the influence of multiple factors of multi-layer goaf and small coal mines goaf, we carry out scientific analysis on the safety mining of working face, three aspects from the working face of＂two tunnels and two lines＂and key prevention and control area of crossheadings, the overlying 22^# coal and 12^# coal goaf, small coal mine goaf are proposed by influence of complex mined out area in 31202-1 working face mining.