突出矿井立井揭煤安全技术研究
Energy Technology and Management（2018）
Abstract
针对东大矿回风立井3号煤层赋存条件及瓦斯地质条件,详细分析了煤与瓦斯突出影响因素,提出了行之有效的井筒揭煤突出防治对策.按两个“四位一体”的区域和局部综合防突措施,顺利消除煤与瓦斯突出危险;注浆加固消突后的破碎煤体,可有效形成应力承载结构,并有效阻挡周围游离瓦斯的运移;经消突验证抽采达标,在距煤层顶板法距2m处,采取安全防护措施下远距离爆破揭穿煤层.
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