【作者】 王永秀； 毛德兵； 齐庆新；

【Author】 Wang Yongxiu;Mao Debing;Qi Qingxin Beijing Mining Research Institute of China Coal Research Institute, Beijing 100013

【机构】 煤炭科学研究总院北京开采研究所；

【摘要】 本文应用数值模拟方法模拟分析了综放开采中煤层厚度与液压支架支护阻力对顶煤冒放性的影响关系,指出了顶煤冒放性本质上由其所处的力场决定,不能简单的以煤层厚薄来推定顶煤的冒放性能,同时阐明了同一厚度的煤层,其顶煤在不同液压支架支护阻力作用下,可能会呈现出截然不同的顶煤冒放性能。更多还原

【Abstract】 the effect of coal seam thickness and powered support on collapse of top-coal in top-coal caving isanalyzed in this paper The fact is shown that the collaose of top-coal caving is decided by the mechanic fieldsubstantially and can’t be explained simply by coal seam thickness and so on. in the meantime, it is also pointedout that the collapse of top-coal of the same thickness can be distinct because of the power of poweredsupport.更多还原