The use of different mining methods may cause some changes in gas emission, gas distribution rule and gas migration when the long-wall top coal caving (LTCC) is used for the high gas content coal seam, leading to a hidden danger of safety production.
The use of different mining methods may cause some changes in gas emission, gas distribution rule and gas migration when the long-wall top coal caving (LTCC) is used for the high gas content coal seam, leading to a hidden danger of safety production.
摘要在综采放顶煤开采高瓦斯煤层时，由于采用的开采方法不同，会带来瓦斯涌出与分布及运移规律的一系列变化，给煤矿的安全生产造成极大的事故隐患，因此必须对此进行深入的研究。