Construction method for underground pipe gallery located at bottom of frame bridge below railway line

A technology of underground pipe gallery and construction method, which is applied in the direction of erecting/assembling bridges, bridges, excavation, etc., can solve problems such as undiscovered system, and achieve economical and rational, high support stability, and low cost Effect

Pending Publication Date: 2022-04-26
安徽铁建工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, no systematic literature reports have been found to solve the above problems

Method used

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  • Construction method for underground pipe gallery located at bottom of frame bridge below railway line
  • Construction method for underground pipe gallery located at bottom of frame bridge below railway line
  • Construction method for underground pipe gallery located at bottom of frame bridge below railway line

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention:

[0044] The urban underground comprehensive pipe gallery is divided into the main line comprehensive pipe gallery, the branch line comprehensive pipe gallery and the cable pipe gallery. The underground pipe gallery referred to in this technology is mainly the branch line comprehensive pipe gallery and the cable pipe gallery. Way.

[0045] Referring to the accompanying drawings, a construction method for an underground pipe gallery located at the bottom of a frame bridge under a railway line, the construction steps are as follows:

[0046] 1) Construction work pit protection piles, back piles, excavation of work pits, construction floor, prefabricated frame bridge on the bottom plate, construction of isolation piles; construction of pile foundation 4 on both sides...

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Abstract

The invention discloses a construction method for an underground pipe gallery located at the bottom of a frame bridge below a railway line. The construction method mainly comprises the following construction steps that the frame bridge is jacked in place; backfilling the railroad bed to recover the original railway line; constructing horizontal steel pipes at the bottom of the frame bridge; steel piles are driven into soil at the bottom of the frame bridge; soil at the bottom of the frame bridge is excavated to the designed elevation; laying a cement leveling layer; assembling and constructing each section of underground pipe gallery; and slurry is injected into the periphery of the underground pipe gallery. The method has the following advantages: the construction of the underground pipe gallery has no influence on the construction period of a railway line, and the influence on the existing railway line can be ignored; a supporting system formed by the cement-soil stirring walls, the steel pipes and the steel piles has high strength, and a safe and stable space is provided for construction of the underground pipe gallery. Slurry is injected into the periphery of the underground pipe gallery based on the grouting holes, so that the space between the underground pipe gallery and the surrounding soil body is filled with the grouting, and the construction quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of underground engineering construction, in particular to a construction method for an underground pipe gallery located at the bottom of a frame bridge under a railway line. Background technique [0002] Based on the development of urban roads and the speed-up requirements of existing railways, the intersections of roads and highways are gradually changed from planes to overpasses. The road passes under the existing railway, and the overpass bridge is built under the existing railway by jacking the frame bridge, which occupies a small area and has little interference. During the construction of the underpass, there is no need to interrupt the operation, and the impact on the operation of the railway is small. The occupation of the underpass frame The smaller land area is conducive to improving the utilization rate of urban land, and it is more in line with the requirements of urban landscape. [0003] At th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045E02D27/12E02D27/00E02D19/18E02D5/46E02D5/28E02D17/04E02D31/02E02D15/02E01D21/00
CPCE02D29/045E02D29/10E02D27/12E02D27/00E02D19/18E02D5/46E02D5/28E02D5/285E02D17/04E02D31/02E02D15/02E01D21/00
Inventor 陈卫东杨继绪陆敬松王洁民方升东张汉吴小平黄博涛郑伟张梦为宋子景许光浩刘金龙
Owner 安徽铁建工程有限公司
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