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. 07, 2025
Filed:
Jan. 14, 2025
Shandong University of Science and Technology, Shandong, CN;
Dawei Yin, Shandong, CN;
Zhe Liu, Shandong, CN;
Lei Han, Shandong, CN;
Shaojie Chen, Shandong, CN;
Shouqian Sheng, Shandong, CN;
Qi Xu, Shandong, CN;
Yiqun Zhang, Shandong, CN;
Shouzhen Xue, Shandong, CN;
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Qingdao, CN;
Abstract
Disclosed is a graded plugging, monitoring and reinforcing integrated method for separation stratum grouting under single-side open conditions, falling within the technical field of coal mine filling and mining. The method specifically includes the following steps: analyzing the development law of a separation stratum, determining the scope of protective coal pillars for a surface building/structure, constructing a combined plugging dam, monitoring and evaluating the combined plugging dam, and implementing local reinforcement measures. The combined plugging dam proposed in the present disclosure can effectively prevent grout from flowing and migrating towards the remaining space of a target separation stratum above a mined area during grouting under single-side open conditions, enhancing the effectiveness of separation stratum grouting.