高抽巷治理厚煤层综采工作面瓦斯技术研究

摘要

根据对采空区覆岩裂隙发育及瓦斯运移情况进行分析，在开采煤层顶板采动裂隙带内布置高位瓦斯抽排巷抽采采空区卸压瓦斯，合理确定高抽巷设置层位，通过对高抽巷抽采厚煤层综采工作面瓦斯的抽采效果考察，结果表明，高抽巷瓦斯抽采有效保证了工作面安全高效生产，对类似条件下的工作面瓦斯治理具有一定的借鉴意义。%Based on the analysis of the fracture development and gas migration in the overburden strata of gob, high-level drainage roadway was arranged in the mining fractured zone in roof rock strata of coal seam for extracting the pressure-released gas in the gob, the position of the high-level roadway was rationally determined, and gas drainage effect investigation in a fully mechanized face of thick seam by high-level roadway was conducted. The results indicated that the gas drainage by high-level roadway could effectively guarantee the safe and efficient production in the working face, and it had a certain referential significance for gas control in other working faces with similar conditions.