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Caisson foundation structure of water-crossing bridge with depth of over 100 meters and construction method

A technology for caisson foundations and sea-crossing bridges, which is applied in the direction of foundation structure engineering, caissons, sheet pile walls, etc., can solve problems such as inapplicability and heavy weight, increase stability, reduce water flow force and wave force, and reduce project costs Effect

Pending Publication Date: 2021-06-01
CCCC SECOND HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of caisson structure is heavy and requires a deep dock and channel to ensure the smooth floating of the structure.
In the face of structures such as the Qiongzhou Strait with a maximum water depth of about 100 meters and the Gibraltar Strait with a maximum water depth of about 300 meters, it is often not applicable

Method used

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  • Caisson foundation structure of water-crossing bridge with depth of over 100 meters and construction method
  • Caisson foundation structure of water-crossing bridge with depth of over 100 meters and construction method
  • Caisson foundation structure of water-crossing bridge with depth of over 100 meters and construction method

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0032] In the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not indicative or implied. It should not be construed as limiting the invention that a device or element must have a particular orientation, be constructed, and operate in a particular orientation.

[0033] The caisson foundation structure of the present application is particularly suitable for large caissons, and can also be applied...

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Abstract

The invention discloses a caisson foundation structure of a water-crossing bridge with the depth of over 100 meters and a construction method. The area of the caisson foundation structure is gradually reduced from bottom to top, the caisson foundation structure is arranged in a step shape, the bottom area of the caisson foundation structure is determined according to the load of the upper structure of the bridge, and the top area of the caisson foundation structure is set to be larger than the area of a bridge pier body. According to the caisson foundation structure of the water-crossing bridge with the depth of over 100 meters and the construction method, a rotating body of a caisson foundation is utilized, the characteristic that water needs to be injected before the caisson foundation is implanted is combined, so that the foundation structure form is changed from small draft to large draft, and therefore the problems of building an ultra-deep dock and dredging an over-deep channel are avoided.

Description

technical field [0001] The invention relates to the field of bridge deep water foundations. More specifically, the present invention relates to a caisson foundation structure and construction method of a super-100-meter deep-water sea-crossing bridge. Background technique [0002] With the continuous improvement of the national infrastructure level, more and more world-class bridges have emerged, and the scope of construction of these bridges is gradually expanding from inland rivers to oceans, such as the Hong Kong-Zhuhai-Macao Bridge, the Hangzhou Bay Bridge, and the China-Malaysia Friendship Bridge. etc. In the construction of cross-sea bridges, a prominent feature is that the water depth is too large, and the traditional pile foundation design is difficult to construct. Excessive water depth will lead to excessive length of pile foundation cantilever, construction accuracy is difficult to meet the requirements, and there are safety risks; at the same time, the main spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/52E02D23/00E02D5/74
CPCE02D5/74E02D23/00E02D27/52
Inventor 张永涛冯先导潘桂林骆钊林红星吴启和刘建波万猛张磊赵东梁
Owner CCCC SECOND HARBOR ENG