Gas control techniques for upper adjacent seams in mining of low-permeability highly gassy multiple coal seams
A large quantity of gas are emitted from the upper adjacent seams during mining of # 15 seam in closely-spaced multiple seam mining in the Yangquan mining area of Shanxi, China.To ameliorate the loss of gas, the impacts of geological structure, seam depth, and roof/floor lithology on the occurrence of gas in # 5 Mine in Yangquan were analyzed using the principles of gas geology.The geological characteristics of seam gas was also studied in conjunction with the gas emission characteristics of the mine.The fracture development in the overburden was studied using the key strata theory.The results were used to optimize the gas drainage parameters.The gas control technique and its effects for # 5 Mine were analyzed to provide technical support for gas prevention and control in adjacent seams.
Low permeability highly gassy adjacent seam gas occurrence
Li Juntao Zhang Huijie
China Coal Engineering and Technology Group Corporation,Beijing 100013, China Mine Safety Technology Branch of China Coal Research Institute, Beijing 100013, China
国际会议
The 34th International Conference on Ground Control in Mining (ICGCM) 2015(34届国际采矿岩层控制会议)
焦作
英文
102-106
2015-10-17（万方平台首次上网日期，不代表论文的发表时间）