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Bridge pier cofferdam reinforcing structure and constructing method thereof

A technology for strengthening structures and cofferdams, applied in infrastructure engineering, construction, etc., can solve the problems of low cofferdam tightness, extensive construction, high cost, etc., and achieve the effects of low consignment technical requirements, time saving and low difficulty

Active Publication Date: 2014-12-24
HEBEI ROAD & BRIDGE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above shortcomings, the present invention is based on solving the problems of existing bridge piers, especially underwater bridge piers in deep oceans, where cofferdams have low sealing performance and may cause water leakage, are greatly affected by underwater geology, extensive construction, high cost, and long construction period.

Method used

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  • Bridge pier cofferdam reinforcing structure and constructing method thereof
  • Bridge pier cofferdam reinforcing structure and constructing method thereof
  • Bridge pier cofferdam reinforcing structure and constructing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] A bridge pier cofferdam reinforcement structure, comprising a cofferdam 19 formed by connecting a plurality of arc-shaped structural steel sheets 5 and cuboid structural steel sheets 20 . The top of the arc-shaped structural steel sheet 5 is a stepped upward convex structure, and the bottom is a stepped concave structure matching the top stepped shape; one side is a trapezoidal guide rail 6, and the other side is a dovetail groove 1 matching the trapezoidal guide rail 6 .

[0043] The top of the cuboid structural steel sheet 20 is a stepped upward convex structure, and the bottom is a stepped concave structure matching the top stepped shape; one side is a trapezoidal guide rail 6, and the other side is a dovetail groove 1 matched with the trapezoidal guide rail 6 .

[0044] In addition, suspension rings 8 are provided alternately above and below the outside of the rectangular parallelepiped structural steel sheet 20 , and suspension rings 8 are also provided alternatel...

Embodiment 2

[0057] A bridge pier cofferdam reinforcement structure includes a cofferdam 19 formed by connecting and surrounding a plurality of arc-shaped structural steel sheets 5 . The top of the arc-shaped structural steel sheet 5 is a stepped upward convex structure, and the bottom is a stepped concave structure matching the top stepped shape; one side is a trapezoidal guide rail 6, and the other side is a dovetail groove 1 matching the trapezoidal guide rail 6 .

[0058] In addition, suspension rings 8 are arranged alternately above and below the outside of the arc-shaped structural steel sheet 5 . The transition fit between the dovetail groove 1 and the trapezoidal guide rail 6, wherein: the dovetail groove 1 is also wound with a raw material belt.

[0059] The above-mentioned structure is based on the shape of the pier as a cylindrical pier and a square pier. The construction method of this structure includes the following steps,

[0060] (1) Transport a plurality of scattered arc...

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Abstract

The invention discloses a bridge pier cofferdam reinforcing structure. The bridge pier cofferdam reinforcing structure comprises cofferdams (19), wherein each cofferdam (19) is defined by a plurality of steel sheets (5) of an arc-shaped structure in a connected mode or defined by a plurality of steel sheets (5) of an arc-shaped structure and a plurality of steel sheets (20) of a cuboid structure in a connected mode. The bridge pier cofferdam reinforcing structure is convenient to disassemble and assemble and flexible to convey, after one cofferdam is reinforced and disassembled, the cofferdam can be directly hauled to another construction site for use, and therefore the equipment utilization rate is increased.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a bridge pier cofferdam reinforcement structure and a construction method thereof. Background technique [0002] Cofferdam refers to the temporary enclosure structure built for the construction of permanent water conservancy facilities in the construction of water conservancy projects. Its function is to prevent water and soil from entering the construction site of the building, so as to drain water in the cofferdam, excavate the foundation pit, and build the building. Generally, it is mainly used in hydraulic construction. Except as a part of formal buildings, cofferdams are generally removed after use. The height of the cofferdam is higher than the highest water level that may occur during the construction period. [0003] Sheet pile cofferdam is the most commonly used type of sheet pile cofferdam. Steel sheet pile is a kind of section steel with lock...

Claims

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Application Information

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IPC IPC(8): E02D19/04
Inventor 杜东升
Owner HEBEI ROAD & BRIDGE GROUP
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