Investigation on the permeability enhancement of Dahebian syncline coal rock in Liupanshui coalfieldYuanlong Wei, Lingyun Zhao, Yinlan Fu, Fuping Zhao, Wei Liu, Gang Xiang, Xuanshi Zhu and Xiong ZhangE3S Web Conf., 625 (2025) 02022DOI: https://doi.org/10.1051/e3sconf/202562502022