煤巷掘进工作面瓦斯抽采技术研究

Research on Gas Extraction Technology in Coal Roadway Heading Face

低透气性高瓦斯突出危险一直是影响矿井煤巷安全快速掘进的重要因素,传统的防治方法往往严重影响掘进面的生产效率,本文提出的采用深孔预裂控制松动爆破结合巷旁走向钻孔抽放瓦斯的方法,较好地解决了煤巷掘进过程中防治瓦斯与安全生产的矛盾,实现了煤巷的安全快速掘进,收到了良好的社会经济效益。

The low permeability and high gas outburst danger has been the important factors of affecting safe and rapid excavation of the mine coal roadway. The traditional method of preventing and, controlling often severely affects the production efficiency of the drivage face. This paper puts forward the method which uses deep - hole pre - split- ting controlled loose blasting and combines with roadside trend borehole for gas drainage, better solves the contradictions of prevention and control of gas with the production in the process of coal roadway drivage, realizes safe and quick excavation of coal roadway, and obtains good economic benefits