Hypergravity model test device and method for simulating progressive failure of shield tunnel face
US12037907B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 7, 2022 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Nov 19, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hypergravity model test device for simulating a progressive failure of a shield tunnel face, including a model box, a shield tunnel model, a servo loading control system and a data acquisition system. The servo loading control system includes a servo motor, a planetary roller screw electric cylinder and a loading rod. The data acquisition system includes a displacement transducer, an axial force meter, a pore pressure transducer, an earth pressure transducer and an industrial camera. The servo loading control system is connected to an excavation plate through the loading rod to control the excavation plate to move back and forth along an axial direction of the shield tunnel model at a set speed to simulate failure of the shield tunnel face. A method for simulating a progressive failure of a shield tunnel face is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.