中国矿山工程

In view of the gas control problem of Donghuantuo 3095 working face, through the collection, analysis and calculation of gas parameters during the excavation of the working face, the comprehensive gas control plan during the mining period of the working face is formulated in advance, which can simultaneously implement the gas control project during the excavation and installation process to ensure that the gas control measures during the mining period are in place. At the same time, by analyzing the effect of gas control during mining, the specific parameters of gas control measures can be further optimized, so as to significantly improve the effect of gas control and avoid the gas concentration in the working face exceeding the limit. The research results show that after the implementation of the gas comprehensive control measures of the combination of pipe drainage at the upper corner and water injection at the working face, the gas concentration at 3095 working face and the upper corner is controlled below 0.21%, and there is no obvious gas accumulation during the mining, which can effectively ensure the safe and efficient mining of Donghuantuo 3095 working face, and provide important reference and reference for the gas comprehensive control of working faces in similar mines.