大倾角采煤破碎煤岩体不同胶结体注浆胶结性能分析

Analysis of Grouting and Cementation Performance of Different Cementation Bodies in Broken Coal and Rock Mass in Large Dip Mining

分析了某矿区1800工作面的实际冒顶片帮问题,研究了煤岩体承载规律,得出针对大倾角采煤破碎煤岩体不同岩体及不同注浆材料的胶结体注浆胶结性能。分析以为,整个胶结体中注浆材料形成结构起主要作用,岩体起到辅助作用,为类似煤层开采提供一定的理论指导和帮助。

Based on the analysis of the actual roof fall and wall fragmentation of the 1800 working face in a mining area,the bearing law of the coal and rock mass is studied,and the grouting and cementation performance of the cementitious body for different rock masses and different grouting materials of the broken coal and rock mass with large dip angle is obtained.It is suggested that the formation structure of grouting material plays a major role in the whole cementation body,and the rock mass plays an auxiliary role,providing certain theoretical guidance and help for similar coal seam mining.