Final joint of immersed tunnel as well as prefabrication method and installation method
US10526762B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 12, 2018 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jan 12, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2250/0061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present application discloses a final joint of an immersed tunnel, a prefabrication method and an installation method, wherein the final joint includes two end surfaces connected with installed adjacent tube sections; the two end surfaces are both tilted surfaces, so that the longitudinal profile of the final joint along an installation direction is of an inverted trapezoid structure; and the final joint further may be of a structure with a tube section I and a tube section II which are connected with each other. The final joint of the immersed tunnel is simple in structure, convenient to control and relatively high in precision, thereby reducing lots of open sea diving work and lowering a risk of installation quality defects; as prefabrication procedures are simple, the final joint may be prefabricated in a land factory and then transported to the site, thereby reducing influence of weather conditions on construction; a body structure of the final joint is prefabricated in the factory, and then the overall final joint is transported to the site for installation; water stop systems realize quick water stop, thus forming a dry construction environment; and therefore, the influen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.