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沁秀公司岳城煤矿为高瓦斯矿井,现开采3号煤层,综采工作面在开采过程中,采空区瓦斯的大量涌出严重的制约了综采工作面的生产,为了解决这一技术难题,岳城矿在1302(上)采煤工作面先后采取了采空区密闭预埋管路抽放、高位钻孔抽放及地面钻井相结合抽放采空区瓦斯工艺,均取得了一定的效果,形成“三位一体”采空区抽放模式,有效地控制了采空区瓦斯涌出。
Qinshuo Company Yuecheng Coal Mine is a high-gas mine, No. 3 coal seam is being exploited. During the process of mining, the large amount of gas gushed in goaf severely restricts the production of fully mechanized mining face. In order to solve this problem The challenge was that the Yuecheng Mine had adopted the gas drainage of the mined-out area in the 1302 (above) coal mining face in a sealed manner, the high-level borehole drainage and ground drilling combined with the drainage of the goaf gas, all achieved a certain The effect of the formation of “Trinity ” mined-out area drainage mode, effectively control the gas gob emission mound.