1. School of Resources & Environment, Henan Polytechnic University, Jiaozuo, China
2. Research and Application Center of Gas Geology(Yangquan Xinyu Geotechnical Engineering Co., Ltd.), Huayang New Material Technology Group Co., Ltd, Yangquan, China
3. School of Civil Engineering, Hebei University of Science & Technology, Shijiazhuang, China
4. Ministry of Education, Key Laboratory of Roads and Railway Engineering Safety Control (Shijiazhuang Tiedao University), Shijiazhuang, China