Protecting trolley and construction method of rock burst prewarning protection system in non-contact tunnel construction
US11920474B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 17, 2022 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Nov 20, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F11/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided are a protecting trolley and a construction method of rock burst prewarning protection system in non-contact tunnel construction. The protecting trolley includes a framework, a walking assembly, a rockfall buffering assembly, a spraying assembly and a rock burst prewarning system. The rockfall buffering assembly includes an arch frame in a fixed connection with the framework and a protecting net fixed on the arch frame. The spraying assembly includes a track car in connection with the rockfall buffering assembly and a spraying hose fixed on the track car, and the spraying hose sprays towards the surrounding rock. The rock burst prewarning assembly includes a thermosensitive infrared sensor used for detecting the temperature of the surrounding rock and a highly sensitive laser sensor used for detecting the deformation of the surrounding rock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.