乌兰木伦煤矿综采面过空巷泵送支柱支护技术研究

为了安全顺利通过布置有多条平行于工作面空巷的12404-1综采面，分析了乌兰木伦煤矿12404-1综采面顶板岩性参数，按照顶板岩层自重的1.3倍安全系数计算并选择合理支护强度及支护形式，并采用空巷泵送支柱进行了补强支护。回采实践证明“泵送支柱+锚索”联合支护能够完全满足回采期间空巷顶板的稳定性，实现了综采面快速、高效通过多条近距离平行于工作面空巷。

Analysis on strength and technology of pumping support for passing through empty roadway in fully mechanized mining face in Ulan Mulun coal mine

Abstract: 5 working faces are arranged in the five disk area of 12 coal mine in Ulan Mulun coal mine. The length of the working face is relatively short, the length is basically 1080m, the auxiliary retracting channel from the working face is 113m in the big lane, in order to improve the recovery rate of coal resources in the disk area and reduce the waste of coal resources. Fully mechanized mining face, the auxiliary retracement is used as the return air trough, and the rubber transportation roadway is the main transportation trough. When facing the difficulties of fully mechanized face, 9 empty tunnels are required, of which 8 are parallel to the working face and 1 are perpendicular to the working face. Through the empty roadway, we should mainly consider the choice of the supporting way, how to determine the strength of the pillars, and how to determine the form of the pillar parameters.