In order to improve high gas concentration in 1401 working face of Yanjing One Mine, wear layers, consequent layers and goaf extraction system were designed to study gas release law in K14 coal seam combining with geological conditions of surrounding rock. Through analyzing the relation between gas extraction and roof pressure, the results showed that gas emission was closely related to roof periodical pressure. Therefore, roof pressure directly affected permeability of coal seam and then affected gas emission.
谯永刚. 盐井一矿1401工作面瓦斯抽采实践[J]. 煤炭与化工, 2017, 40(6): 150-153.
Qiao Yonggang. Gas extraction practice in 1401 working face of Yanjing One Mine. CCI, 2017, 40(6): 150-153.