浅埋深近距离易自燃煤层群复合采空区漏风规律研究

Study on Air Leakage Laws in Complex Goaf of Shallow Buried Depth and Close Distance Spontaneous Combustion Coal Seams

摘要: 以补连塔煤矿为背景，运用理论分析、数值模拟和现场实践对补连塔煤矿的漏风规律进行研究，研究结果表明：在工作面水平方向，漏风强度大小与距工作面长度呈正相关关系，距工作面越近，漏风强度越大；在倾向方向上，从运输巷到回风巷漏风量有逐渐增加的趋势；在垂直方向上，漏风程度与层位高度密切相关，在较高的层位上，漏风强度变化程度缓慢。

Abstract: Taking Bulianta Coal Mine as the background, this paper uses theoretical analysis, numerical simulation and field practice to study the air leakage laws of Bulianta Coal Mine. The results show that, in the horizontal direction of the working face, the air leakage intensity is positively correlated with the length to the working face, and the closer to the working face is, the greater the air leakage intensity is; in the direction of inclination, there is an increasing trend of air leakage from the transport lane to the return air lane; in the vertical direction, the degree of air leakage is closely related to the height of the stratum, and in the higher level, the air leakage intensity changes slowly.