1. Institute of Mine Water Hazards Prevention and Controlling Technology, China University of Mining and Technology, Xuzhou, Jiangsu, People’s Republic of China;
2. School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, Jiangsu, People’s Republic of China;
3. Donghua Construction Company Limited, Yankuang Group, Zoucheng, Shandong, People’s Republic of China;
4. Beijing Exploration Resources Technology Co., Ltd, Fengtai, Beijing, People’s Republic of China