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高瓦斯矿井综放工作面的瓦斯积聚超限是影响安全生产的重大隐患,也是国内外技术人员努力攻关的焦点。大水头煤矿属透气性较低、高瓦斯、三软厚煤层矿井,虽然采取了瓦斯抽采、监测监控、风排瓦斯等技术措施,但是采空区瓦斯涌出到工作面、造成上隅角瓦斯浓度超限情况时有发生,成为影响矿井安全生产的主要隐患,如何实现综放工作面回采期间对瓦斯涌出规律的研究,对瓦斯管理工作提出了更高的要求。
Gas accumulation in the fully mechanized top coal caving face of high-gas coal mine is a major hidden danger of safety production, and it is also the focus of hard work of technical personnel at home and abroad. Large head coal mine is a low permeability, high gas, three soft thick seam coal mine, although the gas extraction, monitoring and monitoring, wind drainage gas and other technical measures, but the gob gas emission to the work surface, resulting in the upper corner Gas concentration out of limits have occurred from time to time, become a major hazard affecting mine safety production, how to achieve the study of gas emission law during the recovery of fully mechanized top coal caving face, put forward higher requirements for gas management.