而放煤漏斗轮廓受煤层倾角影响不大。
The coal seam dip Angle has little effect on the caving funnel.
提出了破坏“拱”平衡，增加顶煤放出率的措施和确定放煤步距的原则。
The paper also points out the measures for increasing coal output and the principle for determining reasonable caving interval.
分析了不同放煤步距、顶煤块度对放煤过程中煤矸砂流动形态、混矸程度的影响。
The effects of different drawing intervaland top-coal fragmental size on flow character of coal-gangue and sand, and on mixed degree of coal and gangue were analyzed during drawing top-coal.
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