In order to reduce the mine gas disaster and ensure the safe production, from the data analysis of the gas volume extracted from 15 drill holes in the high drilling field of 21217 working face of Dongpang Mine, it can be concluded that the extraction volume can reach more than 30% of the maximum gas outflow at 32 ~ 124 m from the working face in the overall extraction process, the final hole distance of the drill hole was designed at 4 times of the coal thickness, and the flat distance was designed, the best extraction effect can be achieved at the position of about 1/3 of the working face length.
冯 捷. 东庞矿采煤工作面高位瓦斯抽采钻孔应用研究[J]. 煤炭与化工, 2021, 44(3): 117-120.
Feng Jie. Study on the Application of High Level Gas Extraction Drilling in mining face of Dongpang Mine. CCI, 2021, 44(3): 117-120.