Comprehensive control technology for mine gas uneven area in lower gassy mine

Taking Xiandewang Mine of Xingtai as an example, the provided a set gas control scheme based on the mine gas uneven area in Xiandewang mine. The paper studied the gas deposit features in the gas uneven area and identified and predicted the gas uneven area. The paper analyzed and settled the outburst sensitive indexes. The paper settled the critical value of the outburst index at field. The paper provided the outburst control and prevention measures for the outburst dangerous area when over the critical value. The scheme has been well applied in Xiandewang Mine with good economic benefits.