Model test apparatus and method for shield tunnel post-wall grouting and tube sheet uplift under high water pressure conditions
US12360284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Mar 26, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention discloses a model test apparatus and method for shield post-wall grouting and tube sheet uplift under high water pressure conditions, comprising main body box, tension apparatus, shield system, grouting system, ground stress loading system, water injection system, and monitoring system. The main body box comprises the shield shell system and model soil inside. The ground stress loading system and water injection system realize the simulation of the complex underground soil and muddy water environment by applying stress and water pressure to the model soil inside the main box. While the tension apparatus makes the shield shell moving forward, the grouting system injects slurry into the gap between the shield shell and the tube sheet. The integrated model test of visual shield grouting and tube sheet uplift, the real-time multi-physical field responses, and the longitudinal deformation mechanism have been realized and revealed under high water pressure conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.