Study on the Pressure-relief Gas of Low Air Permeability Coal Seam Drainage Technique by One Gateway with Two Utilizations for Two Adjacent Coalfaces

摘要：

　　A high drainage roadway was constructed in the overburden fractured zone on the air-return roadway side of the lower-section working face to realize a high drainage roadway serving two adjacent coalfaces.First, high-level boreholes were arranged in the lateral high drainage roadway (LHDR) and used to extract the pressure-relief gas in the overburden fractured zone of the upper-section working face.Then, the roadway was used to extract the pressure-relief gas in the overburden fractured zone of the lower-section working face.With this layout, the LHDR could perform a dual function.Theoretical analysis, numerical simulation analysis, and field observation analysis were adopted to identify the mining-induced overburden fissure and stress distribution laws for both working faces and determine the layout parameters of the LHDR and the final position of the high-level boreholes on the basis of the geological conditions of the 2-603 working face in the Liyazhuang Coal Mine.

关键词： low air permeability pressure-relief gas lateral high drainage roadway gas drainage one gateway with two utilizations

作者: LI Shugang SHUANG Haiqing SHEN Shifei WANG Hongsheng LIN Haifei CHEN Gaofeng

作者单位: School of Energy Engineering, Xian University of Science and Technology;Xian 710054, Shanxi, China; Institute of Public Safety Research, Department of Engineering Physics, Tsinghua University, Beijing Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xian 710054,

会议类型: 国际会议

会议名称: The 2016 International Symposium on Safety Science and Technology(2016安全科学与技术国际会议)

会议地点: 昆明

会议语种:英文

页码: 762-762

在线出版日期: 2016-10-17（万方平台首次上网日期，不代表论文的发表时间）