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:
Feb. 01, 2022
Filed:
Apr. 30, 2019
China Institute of Water Resources and Hydropower Research, Beijing, CN;
Xiaogang Wang, Beijing, CN;
Lipeng Liu, Beijing, CN;
Yujie Wang, Beijing, CN;
Yongyu Ling, Beijing, CN;
Yufeng Zhao, Beijing, CN;
Xingsong Sun, Beijing, CN;
Qingwei Duan, Beijing, CN;
Ruizhi Fu, Beijing, CN;
Ruilang Cao, Beijing, CN;
Ping Sun, Beijing, CN;
Jin Pi, Beijing, CN;
Long Jiang, Beijing, CN;
Xingchao Lin, Beijing, CN;
Other;
Abstract
An advanced monitoring device and an implementation method for a whole-process deformation curve of a surrounding rock during tunnel excavation is disclosed, comprising a steel pipe elastic body, a cathetometer structure and an embedded optical fiber, and an implementation step; the cathetometer is an equidistant series structure, and fixed in the steel pipe; the embedded optical fiber is encapsulated in the surface slot of the steel pipe; the cathetometer and the embedded optical fiber and the steel pipe form a deformation coordination structure, and the deformation of the surrounding rock can be deduced by calculating the variation of the cathetometer and the deformation of the optical fiber. The invention can test and calculate the deformation curve of the surrounding rock in front of the excavation face during tunnel excavation, and provide support for engineering dynamic design, construction and safety.