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Construction method for cast-in-place of continuous beam at turnout junction for passenger transport line in seawall area by false work method

A technology for passenger dedicated lines and construction methods, which is applied in the direction of erecting/assembling bridges, bridges, bridge materials, etc., can solve problems such as high cost and poor construction safety, and achieve the effects of simple construction, large construction space, and quality assurance.

Inactive Publication Date: 2014-05-14
NO 7 ENG CO LTD OF CHINA RAILWAY 19 BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the poor construction safety and high cost of the continuous beam of the turnout in the seawall area of ​​the existing passenger dedicated line

Method used

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  • Construction method for cast-in-place of continuous beam at turnout junction for passenger transport line in seawall area by false work method
  • Construction method for cast-in-place of continuous beam at turnout junction for passenger transport line in seawall area by false work method
  • Construction method for cast-in-place of continuous beam at turnout junction for passenger transport line in seawall area by false work method

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Effect test

Embodiment Construction

[0017] Combine below Figure 1 to Figure 5 The implementation steps of the cast-in-place turnout continuous beam construction method of the Haitang District Passenger Dedicated Line of the present invention are described in detail as follows:

[0018] 1. Ground treatment:

[0019] Drilled cast-in-situ pile 6 is used for construction with positive circulation drilling rig, and C30 underwater concrete pouring. According to the geological survey data of the design unit, the friction pile is designed according to the design, and enters the fully weathered rock formation. reinforced-concrete structure.

[0020] 2. Bracket erection:

[0021] 1) The steel pipe 4 is used as the support column to transmit the upper load to the foundation. The steel pipe 4 includes a mid-span steel pipe 41 and a pier steel pipe 42 near the pier 7, wherein the mid-span steel pipe 41 is welded to the pre-embedded steel plate on the top of the transverse beam 5, and the pier steel pipe 42 is connected t...

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Abstract

The invention provides a construction method for cast-in-place of a continuous beam at a turnout junction for a passenger transport line in a seawall area by a false work method. The construction method comprises the steps of processing a foundation, erecting a bracket, pressing the bracket in advance, mounting a support base, mounting a template, processing and mounting reinforcing steel bars, distributing corrugated pipes, casting concrete, constructing prestress, grouting a pipeline and sealing anchor. According to the construction method, the false work is applied to the construction of the continuous beam at the turnout junction of the passenger transport line engineering in the seawall area along the coast, the work procedures of bracket construction and prestress construction are innovated according to the geological conditions and self characteristics of the continuous beam, and by the proving of the practice, the construction of the continuous beam for the passenger transport line in the seawall along the coast achieves good effects, and the acceptance standard of the passenger transport line is met.

Description

technical field [0001] The invention relates to the field of bridge construction for railway passenger dedicated lines, in particular to a construction method for continuous beams of turnouts for passenger dedicated lines in coastal seawall areas. Background technique [0002] With the rapid development of my country's economy and society, the construction of railway bridges in various regions of the country is also developing rapidly. With the increase of capital flow, technology flow, people flow, service flow and space expansion, the passenger transport volume will increase significantly, and fast , comfortable and safe service. These are the advantages of dedicated passenger lines, and the rapid development of rapid rail transit between cities. [0003] At present, my country's railway continuous beam construction technology is relatively complete, but there is no mature construction method for continuous beam construction of passenger dedicated lines in coastal seawall ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D101/28
Inventor 孙玉明
Owner NO 7 ENG CO LTD OF CHINA RAILWAY 19 BUREAU GRP
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