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Bridge prefabricated foundation and bed-burying method thereof

A foundation and bridge technology, applied in the field of buried bed construction technology, can solve the problems of less research in the field of bridge prefabrication foundation, and achieve the effects of saving temporary steel consumption, improving construction efficiency, and ensuring construction quality

Inactive Publication Date: 2011-02-02
CCCC HIGHWAY CONSULTANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Domestic research in the field of bridge prefabricated foundations is less

Method used

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  • Bridge prefabricated foundation and bed-burying method thereof
  • Bridge prefabricated foundation and bed-burying method thereof
  • Bridge prefabricated foundation and bed-burying method thereof

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Embodiment Construction

[0074] See figure 1 , 2 , Is a schematic diagram of the bridge prefabricated foundation structure of the present invention "a bridge prefabricated foundation and its buried bed method". In the picture, there are: lower bridge pier 1, cap 2, cavity 3, guide pile 4, supporting pile 5, bearing pile 6, exhaust gas refill hole 7, supporting pile positioning member 8, supporting pad 9 , Guide pile top guide positioning member 10, guide hole 11, anti-scouring cushion 12, pile core-filled concrete 13, plugging sandbag 14, riprap 15 and sea (or river, river) bed 16.

[0075] A prefabricated foundation for a bridge of the present invention, wherein the lower bridge pier 1 and the cap 2 are prefabricated as a single body; the cap 2 is an undercut structure with multiple guide holes 11 and multiple exhaust refill holes 7. Multiple support pads 9; multiple guide holes 11 are all placed on the periphery of the bearing platform 2, multiple support pads 9 are all placed on the periphery of the t...

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Abstract

The invention discloses a bridge prefabricated foundation and a bed-burying method thereof. The bridge prefabricated foundation consists of a bridge lower part pier body, an undercut bearing platform and a cavity formed by enclosing the pier body and the bearing platform. The undercut bearing platform is reserved with a guide hole, an exhausting recharging hole and a supporting liner plate. The bed-burying method comprises the following steps of: integrally prefabricating the lower part pier body and the bearing platform in a factory; excavating a foundation ditch, and then paving a crash pad layer; and sinking a pile which passes through the crash pad layer and is inserted into a sea (or river) bed. A range of 5 to 30 m below a designed height mark of the top of the pile and is filled with core filling concrete, and a supporting pile and a bearing pile are cut to the designed height mark underwater. The prefabricated foundation is positioned through a guide pile, and is placed on the supporting pile which is provided with a supporting component. The guide pile is cut underwater, and the cavity is poured with concrete to ensure that the prefabricated foundation is firmly connected with the pile. The top surface of the lower part pile body of the bridge prefabricated foundation must be higher than water surface and higher than a splash zone. The bearing platform of the prefabricated foundation is completely buried into the sea (or river) bed to ensure that the water resistance ratio can be reduced, the construction period can be shortened, the influence on the environment can be reduced, and the engineering cost is low.

Description

Technical field [0001] The present invention involves the field of bridge technology. It is a new type of bridge infrastructure form that adopts prefabricated assembly technology and the construction process of buried beds in the sea (or river, river) bed buried in the sea. Background technique [0002] Some studies have been carried out at home and abroad.In a large number of high -sea bridges such as the Norsen Burlan Bridge in Canada, the Hengduan Road of Tokyo Bay, the Saudi Hede Bridge, the United States Ryommond St. Lever Bridge, and the Japanese Arakawa Bay Bay BridgeThere are examples of prefabricated basic applications. [0003] The prefabricated foundation can change a large number of on -site water work on the factory prefabrication, greatly reduce construction difficulties, speed up the construction progress and improve the durability of the infrastructure.According to different geological, hydrological and bridge conditions, various types of prefabricated foundations...

Claims

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Application Information

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IPC IPC(8): E02D15/00E02D27/12E01D19/02
Inventor 徐国平刘高林鸣周山水刘峰付佰勇刘晓东
Owner CCCC HIGHWAY CONSULTANTS
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