【摘要】 为了防治厚煤层综放开采时工作面瓦斯超限问题,保证高产高效矿井建设顺利进行,根据开滦唐山矿业分公司厚煤层综放开采瓦斯涌出情况,研究分析了瓦斯来源及涌出规律,采取了有针对性的综合防治技术措施,如优化巷道布置,合理配风,打钻泄放瓦斯,综合瓦斯抽放,瓦斯监测系统等,取得了明显的治理效果.更多还原

【Abstract】 In order to deal with the problem of the extra limit of gas in the top-coal caving mining working face in extremely thick coal seam and make sure that the mine construction goes on wheels with high output and high efficiency.Based on the situation of gas emission in a top-coal caving mining in extremely thick coal seam in Tangshan Mine,the source and rule of gas emission was studied and the comprehensive preventive measures taken,such as optimizing tunnels arrange,rational ventilating,borehole drilling for gas releasing,gas drainage,and the construction of gas supervising system.By doing so,the gas burst has been well controlled.更多还原