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:
Jul. 01, 2025
Filed:
Jan. 17, 2025
China University of Mining and Technology, Beijing, Beijing, CN;
Center for Hydrogeology and Environmental Geology Survey, Cgs, Tianjin, CN;
Fawang Zhang, Tianjin, CN;
Liu Yang, Beijing, CN;
Manchao He, Beijing, CN;
Chengyu Miu, Beijing, CN;
Zhehan Yu, Beijing, CN;
Guangtao Dong, Beijing, CN;
Benchao Xu, Beijing, CN;
Fei Gong, Beijing, CN;
Shulin Zhang, Beijing, CN;
Jiawei Cai, Beijing, CN;
CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, Beijing, CN;
Center for Hydrogeology and Environmental Geology Survey, CGS, Tianjin, CN;
Abstract
A method and apparatus for classifying water-rich weak surrounding rock based on in-situ scribing are provided. The method includes placing a scribing device on tunnel cross-sections of varying lengths; performing in-situ scribing on the tunnel cross-sections to obtain the mechanical parameters of the surrounding rock and determining the surrounding rock strength at different locations; while performing in-situ scribing, employing near-infrared spectroscopy to simultaneously measure the in-situ spectrum of the tunnel surrounding rock, thereby determining the surface water content at different locations; based on the scribing mechanical parameters of the tunnel surrounding rock, establishing a scribing depth curve, and calculating a joint development degree of the tunnel surrounding rock at different locations from the scribing depth curve; and based on the surrounding rock strength, surface water content, and joint development degree of the tunnel surrounding rock at different locations, classifying the surrounding rock grades of the tunnel cross-section.