The problem of coal and gas outburst seriously affected the safety of coal production, No. 15 coal seam of Shanghaishe coal mine was taken as example. Based on-site research and geological conditions, the sources of gas during the recovery process of No. 15 coal seam, and factors inducing the gas content and the amount of outflow were analyzed. Finally, the 15103 working face adopted the method of drilling and pre-drawing the gas from this seam. The corresponding extraction scheme was adopted. Practice showed that this design effectively reduced the gas concentration and coal seam gas pressure in the working face during recovery, and ensured the safety of the working face, which provided guidance for gas drainage in other working faces in the mining area.
韩 冬. 综采工作面本煤层瓦斯抽放技术研究[J]. 煤炭与化工, 2020, 43(7): 96-98.
Han Dong. Study on extraction and release technology of coal seam gas from the fully mechanized working face. CCI, 2020, 43(7): 96-98.
