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根据倾斜厚煤层放顶煤开采的特点，应用相似材料模拟、现场观测与数学分析方法，提出了适合放顶煤开采的两阶段依次放煤方式和倾斜厚煤层一次全量放煤时的下行放煤顺序，建立了求解放煤参数的数学模型．结果表明，煤层倾角对放出体的影响随其高度的增加而减小，对放煤参数的影响较小；最终放煤残留角是影响放煤参数的主要因素
According to the characteristics of top coal caving mining in inclined thick coal seam, similar material simulation, on-site observation and mathematical analysis methods are put forward. The coal caving method with two stages and the coal caving method suitable for top coal caving mining are put forward. Order, set up a mathematical model to solve the parameters of coal extraction. The results show that the influence of coal seam dip on the discharge body decreases with the increase of height, and has little effect on the coal discharge parameters. The final coal release residual angle is the main factor affecting the coal discharge parameters