厚煤层综采放顶煤采煤技术研究

Research on Fully Mechanized Sublevel Caving Technology in Thick Coal Seam

基于放矿理论重点分析了顶煤放出规律,指出了影响顶煤放出率及安全的因素,介绍了综采放顶煤工艺及相应的配套设备,给出了急倾斜厚煤层和缓倾斜厚煤层中的巷道布置方式、采高及采区走向长度的计算方法,根据放顶煤采煤法易于自燃的实际情况提出防止自燃发火的措施。

Focus on the analysis of the top coal caving law based on ore theory, points out the factors which irapact the top coal recovery rate and safety. Fully mechanized coal caving mining technology and the corresponding equipment is explained. The roadway layout way of the steep dip thick seam and gentle dip thick coal seam, mining height and the calculation method of mining area strike length are given. According to the actual situation of the top coal caving mining method is easy to spontaneous combustion, the appropriate measures to prevent spontaneous corngiven