Construction method of concrete used for reinforcing underwater pier

A technology of bridge pier reinforcement and construction method, which is applied to bridge reinforcement, bridges, bridge parts, etc., can solve the problems of inability to use concrete for underwater bridge pier reinforcement, and cannot be implemented, and achieves strong continuous operation, less auxiliary equipment, and occupation. Small construction area

Inactive Publication Date: 2009-12-16
四川路桥建设集团股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uninterrupted high-speed pouring of underwater concrete with good fluidity under deep water conditions will generate an overpressure sufficient to cause deformation of the weir body and even overall displacement of the weir body on the steel cofferdam placed on the top surface of

Method used

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  • Construction method of concrete used for reinforcing underwater pier
  • Construction method of concrete used for reinforcing underwater pier
  • Construction method of concrete used for reinforcing underwater pier

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 2.

[0041]The construction method of the concrete for the reinforcement of underwater bridge piers of the present invention is the same as that of Embodiment 1, except that all underwater bridge piers are reinforced with the underwater non-segregating concrete 5 by one-time pouring.

Example Embodiment

[0042] Example 3.

[0043] The construction method of the concrete for the reinforcement of underwater bridge piers of the present invention is the same as that of Embodiment 1, except that all underwater bridge piers are reinforced by submerged non-separable concrete for five-minute secondary pouring.

Example Embodiment

[0044] Example 4.

[0045] The construction method of the concrete for the reinforcement of underwater bridge piers of the present invention is the same as that of Embodiment 1, except that all underwater bridge piers are reinforced by pouring the non-segregating concrete under water for 5 minutes and seven times.

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PUM

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Abstract

The invention belongs to the technical field of bridge construction, in particular relates to a construction method of concrete used for reinforcing an underwater pier; the method is to install a foam rubber, a rubber sheet and an orientation positioning device on a steel cofferdam, and is to use an underwater non-segregation concrete to replace general underwater concrete to complete the construction of concrete used for reinforcing the underwater pier. The method has the following construction steps: A, installing the foam rubber at the bottom surface of the steel cofferdam before the steel cofferdam enters water; B, installing the orientation positioning device on the inner wall of the steel cofferdam before the steel cofferdam enters water; C, installing the rubber sheet on the internal edge of the baseboard of the steel cofferdam before the steel cofferdam enters water; D, installing a concrete pouring pipeline before the steel cofferdam sinks to the preset position; E, installing a pouring funnel on the top of the concrete pouring pipeline and pouring underwater non-segregation concrete; F, removing the pouring funnel and the concrete pouring pipeline to complete the construction of concrete used for reinforcing the underwater pier. The invention successfully solves the difficult problem of the construction of concrete used for reinforcing the underwater pier, creates a safe, reliable, economical, convenient and fast construction method of concrete used for reinforcing the underwater pier.

Description

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Claims

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Application Information

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Owner 四川路桥建设集团股份有限公司
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