由于急倾斜煤层开采条件的复杂性和特殊性,采煤方法仍然是此类矿井提高煤层回采率、提高机械化水平和安全生产水平所面临的主要障碍。急倾斜煤层的矿山压力的分布规律复杂,顶板管理困难,事故多发。急倾斜煤层开采的关键不仅是解决回采过程中液压支架防倒、防滑及顶板管理问题,其方法的研究对开采急倾斜煤层及提高资源采出率具有重要的理论和实践意义。 Due to the complexity and particularity of the mining conditions of steep coal seams, the mining method is still the main obstacle for such mines to increase the recovery rate of coal seam and improve the level of mechanization and safety in production. The distribution of pressure in the steep coal seam is complex, the roof management is difficult and the accidents are frequent. The key of steep coal seam mining is not only to solve the problem of falling, skid and roof management of hydraulic support in the process of mining, the research of its method has important theoretical and practical significance for mining steep coal seam and improving resource recovery rate.