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Walking type multi-point jacking-pushing construction method

A push-up construction and walking technology, applied in the erection/assembly of bridges, bridges, buildings, etc., to achieve the effect of low overall engineering cost, convenient operation and high efficiency

Inactive Publication Date: 2012-07-18
CHINA RAILWAY 24TH BUREAU GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of safe movement and rapid positioning of the main girder in the construction of bridges, overpasses and other projects, and to provide a walking-type multi-point jacking construction method with reasonable structure design, scientific method, safety and reliability, which integrates The jacking device integrating jacking, translation, and horizontal adjustment can realize the movement or adjustment of the steel box girder along the bridge, across the bridge, up and down, and ensure the efficient and smooth progress of the jacking construction

Method used

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Embodiment Construction

[0029] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

[0030] In this embodiment, a walking-type multi-point jacking construction method is used as figure 1 The length of the bridge erected between 2# pier 4 and 3# pier 8 is 220 meters as an example. From the left side of 2# pier 4, there are 0# pier 1 and 1# pier 2, and the preparatory work is in 1# pier 2 Set up a temporary pier with 2# pier 4, and use 1# pier 2 to erect a 7# temporary pier, and erect an 8# temporary pier 3 near the left side of 2# pier 4, between 0# pier 1 and 1# pier 2 Set up a pre-assembled platform 12 inclined from the ground to the design height of the pier as an approach bridge, and erect 1# temporary pier 5, 2# temporary pier 6, 3# temporary pier, and 4# temporary pier between 2# pier 4 and 3# pier 8 Pier, 5# temporary pier, 6# temporary pier 7, a total of 6 temporary pier. Inst...

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Abstract

The invention relates to the technical field of bridge engineering, in particular to a walking type multi-point jacking-pushing construction method which solves problems of safely moving and fast taking place for girders in engineering construction such as bridges, interchanges and the like. The walking type multi-point jacking-pushing construction method is characterized in that a jacking-pushing device integrated with jacking, translation and cross adjustment is arranged so as to realize movement or adjustment of a steel box girder in the longitudinal bridge direction, the transverse bridge direction and the vertical direction; two steps of jacking and pushing are performed alternately to jack the whole steel box girder and then deliver the steel box girder forward; then the steel box girder is put on a temporary mound structure to complete a jacking and pushing process, after that a jacking-pushing oil cylinder is shrunk to the bottom of the oil cylinder so as to perform the next jacking and pushing work; and the steps are circulated. The method provided by the invention has the steps of jacking, pushing, dropping and returning to place, is safe and stable, can be operated conveniently, has low comprehensive engineering cost and high efficiency and can realize the integral movement and adjustment of the steel box girder in the longitudinal bridge direction, the transverse bridge direction and the vertical direction.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a walking multi-point jacking construction method. Background technique [0002] Pushing and sliding construction is a kind of engineering production method with certain degrees of bridges, roof trusses, steel structures, etc. For example, the patent publication number is CN101200959A, a kind of steel roof truss multi-point pushing and cumulative sliding construction method, first set up three slideways 6. Sliding support system of six slide rails, set up a high-altitude assembly platform on one side of the main structure, use concrete channel beams as side slides, and erect a middle slideway on the center line of the main structure to temporarily support the tire frame; assemble steel truss components on the ground , and then hoisted to the high-altitude assembly platform to assemble the first sliding unit; connect the first sliding unit with the hydraulic synchronous...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 来国祥任文祥余晓勇赖建昌靳炳强
Owner CHINA RAILWAY 24TH BUREAU GRP
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