Chao Wang
Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China; Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education (Liaoning Technical University), Huludao 125105, P. R. China;
China

Yv Liu
Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China;
China

Dazhao Song
School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China;
China

Jianhui Xu
Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China;
China

Qiwei Wang
Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China;
China

Shaoyuan Zhang
Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China;
China