伊犁矿“三软”围岩巷道支护技术的研究与应用

Research and Application of Roadway Support Technology of "Three Soft" Surrounding Rocks in Yili Mine

通过实验室岩石力学参数测试和现场原岩地应力测试研究了新疆伊犁一矿3煤巷道围岩特性,确定岩性为"三软"围岩。通过现场矿压观测的方法研究了巷道围岩的变形特征,分析了"三软"围岩巷道的松软性与不稳定特点。结合"三软"巷道围岩特性和矿压观测分析结果提出了棚索联合支护方案,并进行了现场应用效果检验,确定了棚索联合支护适合典型"三软"围岩巷道支护技术研究方案。

The surrounding rock characteristics of 3 coal roadway of Yili No.1 mine in Xinjiang are studied by testing rock mechanics parameters in the laboratory and testing original rock stress in the field, and the lithology is determined to be "three soft" surrounding rock. The deformation characteristics of roadway surrounding rock are studied by the method of in-situ mine pressure observation, and the softness and instability characteristics of roadway surrounding rock with "three soft" are analyzed. Combined with the surrounding rock characteristics of "three soft" roadway and the results of mine pressure observation and analysis, the combined support scheme of "three soft" roadway was put forward, and the field application effect was tested, and the research scheme of the combined support of "three soft" roadway was determined.