论文部分内容阅读
针对桃山煤矿14138工作面高抽巷外段与里段顶板岩性相变较大、巷道围岩控制难度大的工程实际,依据计算机数值模拟确定支护技术参数。现场工程实践表明,高抽巷锚梁网支护具有良好的适用性,可在同等条件下推广应用。
Aiming at the fact that the lithology of the outer section and the top section of the high pumping passage in the 14138 face of the Taoshan Coal Mine is large and the surrounding rock of the roadway is difficult to control, the technical parameters of the support are determined according to the numerical simulation of the computer. Field engineering practice shows that bolting and meshing of high pumping roadway has good applicability and can be popularized and applied under the same conditions.