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无煤柱开采是一种可以提高煤炭资源回收率,获得良好经济效益的先进开采技术。近几年来,这种开采技术在我国已有较大的发展,正逐步转向高瓦斯、易燃煤层中试验应用。我国高瓦斯矿井中煤与瓦斯突出的煤层约占三分之一;有自然发火倾向的煤层约占二分之一。所以探讨研究这类煤层应用无煤柱开采的理论和实际应用中的安全问题是当前大力推广应用无煤柱开采技术的重要课
Non-pillar mining is an advanced mining technology that can improve the recovery rate of coal resources and obtain good economic benefits. In recent years, this mining technology in our country has been a greater development, is gradually shifted to high-gas, flammable seam test applications. Coal and gas outburst in China’s high-gas coal mines account for about one third of the coal seam; coal spontaneous tendency of about one-half. Therefore, to explore the application of this type of non-coal pillar coal mining theory and practical application of the security issue is currently vigorously promote the application of non-pillar mining technology, an important lesson