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晋城矿区西部和北部属于高瓦斯矿区,瓦斯治理难度大。矿井开采过程中,采空区瓦斯大量涌出严重制约矿井的安全生产。为解决这一技术难题,岳城矿分别对采空区埋管抽放、地面钻井采空区抽放、采区回风巷高位钻孔采空区抽放技术进行了探索应用,取得了显著效果。为进一步提升采空区瓦斯抽放效率,保障综采工作面安全生产,岳城煤矿通过综采工作面高层位采空区抽放技术应用研究收集高层位采空区抽采钻孔抽放参数,分析采空区瓦斯抽放效果并进行高层位采空区抽采钻孔效果评价,获取高层位采空区抽采技术关键指标。
The west and north of Jincheng Mining Area belong to high-gas mining area, and gas management is very difficult. During the process of mine exploitation, a large amount of gushed gas in the gob area seriously hinders the mine’s safe production. In order to solve this technical problem, Yuecheng Mine explored and applied the drainage of burying pipes in the goaf, the drainage of the gob of the ground drilling well, the high-level gob drainage of the return airway in the mining area, and achieved remarkable results effect. In order to further improve the gas drainage efficiency of the goaf and ensure the safe operation of the fully mechanized coal mining face, the Yuecheng Coal Mine collects the drainage and extraction parameters of the high-level gob in the high-level gob of the fully mechanized coal mining face , Analyzes the gas drainage effect of goaf and evaluates the drilling effect of high-level gob and draws the key technical indicators of gas drainage in high-level gob.