Advanced monitoring device for whole-process deformation curve of surrounding rock of tunnel excavation and implementation method thereof
US11236612B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Sep 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/35316
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.