Abstract: A method for blocking mine water inrush includes: grouting first slurry into an interface between the quaternary aquifer and the weathered bedrock aquifer in a fracture grouting manner until a first preset condition is met; forming a first water-resisting cushion after the first slurry is solidified; drilling a curve branch drill hole in the surface horizon downward; grouting second slurry into the curve branch drill hole in a downward grouting manner until a second preset condition is met; forming a second water-resisting cushion after the second slurry is solidified; grouting third slurry onto a top of the first water-resisting cushion in an upward grouting manner until a third preset condition is met; forming a third water-resisting cushion after the third slurry is solidified; wherein the third water-resisting cushion is located on the top of the first water-resisting cushion.
Type:
Grant
Filed:
June 9, 2023
Date of Patent:
October 10, 2023
Assignees:
CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, University of Mining and Technology—Beijing Inner Mongolia Research Institute
Inventors:
Yifan Zeng, Qiang Wu, Weihong Yang, Zhaolai Hua, Yanping Miao, Lu Wang, Kai Pang, Lei Yang, Aoshuang Mei, Shihao Meng, Han Bao, Xue Liu, Xuan Xiao