The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 2023
Filed:
Jun. 09, 2023
China University of Mining and Technology, Beijing, Beijing, CN;
University of Mining and Technology-beijing Inner Mongolia Research Institute, Ordos, CN;
Yifan Zeng, Beijing, CN;
Qiang Wu, Beijing, CN;
Weihong Yang, Beijing, CN;
Zhaolai Hua, Yulin, CN;
Yanping Miao, Yulin, CN;
Lu Wang, Yulin, CN;
Kai Pang, Beijing, CN;
Lei Yang, Yulin, CN;
Aoshuang Mei, Ordos, CN;
Shihao Meng, Beijing, CN;
Han Bao, Beijing, CN;
Xue Liu, Beijing, CN;
Xuan Xiao, Beijing, CN;
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.