Shield sealing device and shield sealing method
US11905834B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 7, 2020 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | May 7, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present disclosure provides a shield sealing device and a shield sealing method, a pile wall is arranged at a shield receiving opening, the shield sealing device is mounted on the pile wall, and the shield sealing device comprises: an elastic inner ring, an inner wall of the elastic inner ring adapting to an outer wall of a cutter head of a shield tunneling machine; and a plurality of control units, the plurality of control units being mounted on the pile wall, the plurality of control units being arranged in a circumferential direction of the elastic inner ring at intervals, and a driving end of the control part pressing against an outer side of the elastic inner ring so as to extrude or release the elastic inner ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.