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本文介绍了高水速凝材料的基本特性 ,分析了厚煤层综放面开切眼冒顶的原因 ,并用高水速凝材料注浆充填技术固化了切眼顶板 ,同时起到了防止顶板煤层自然发火的作用。
In this paper, the basic characteristics of high-water quick-setting materials are introduced. The reason of open-topped roof falling out from fully mechanized top coal caving mining face in thick coal seam is analyzed. High-speed solidified material grouting filling technology is used to cure the cut-out roof and prevent the spontaneous combustion of roof coal seam Role.