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无机防灭火材料在综放工作面遗煤氧化治理中的应用 被引量:1

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摘要 小煤柱在综放面推采过程中受到超前应力及上一个面的采动作用后,煤岩体强度大大下降,煤岩体的透气性呈几何式增加,增加了采空区的漏风量,加速了遗煤氧化蓄热。针对小煤柱未加固过的、且出现瓦斯涌出及老采空区对工作面巷道漏风的部分,通过对煤柱内部注入无机防灭火材料,与煤体形成固结体,不仅可以加固破碎的煤体,更重要的是可以封堵煤柱中的裂隙,阻止风流进入采空区,隔绝含氧环境。
作者 赵泽鑫
出处 《能源技术与管理》 2020年第1期62-63,共2页 Energy Technology and Management
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