CAJ | 학술논문

近距离煤层群开采过程中邻近层之间产生大量相连通的裂隙，采场情况十分复杂，并伴随不同煤层间因通风导致的煤层间漏风，致使采空区漏风规律与单层开采有很大区别，采空区气体的分布规律也更加复杂，给采空区煤层自燃预测预报带来了困难。因此通过理论分析并结合现场监测结果研究近距离煤层群开采本层及上层采空区气体变化规律，为制定采空区煤自燃预防措施提供科学依据。
근거리매층군개채과정중린근층지간산생대량상련통적렬극，채장정황십분복잡，병반수불동매층간인통풍도치적매층간루풍，치사채공구루풍규률여단층개채유흔대구별，채공구기체적분포규률야경가복잡，급채공구매층자연예측예보대래료곤난。인차통과이론분석병결합현장감측결과연구근거리매층군개채본층급상층채공구기체변화규률，위제정채공구매자연예방조시제공과학의거。
A large amount of jointed fractures between adjacent seams occur in the mining of closed-distance seam group. Complicated mining field, accompanied with air leakage caused by ventilation between different layers, leads to the different air leakage rule from single seam mining. In addition, the gas distribution of goaf is more complex and makes it difficult to alarm spontaneous combustion. The paper studies the gas rules of the seam and the upper seam for the closed-distance seam groups based on the theoretical analysis and monitoring results, which could provide a scientific basis to prevent the coal spontaneous combustion in goaf.