Pile foundation underpinning mechanism combined with subway station structure

A technology for underpinning of subway stations and pile foundations, which is applied in the direction of infrastructure engineering, excavation, construction, etc., can solve the problems of cumbersome construction and unfavorable rapid traffic recovery, and achieve the effects of simplifying the construction process, saving project cost, and saving construction period

Pending Publication Date: 2021-08-27
CHINA RAILWAY LIUYUAN GRP CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction is cumbersome, which is not conducive to the rapid restoration of traffic

Method used

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  • Pile foundation underpinning mechanism combined with subway station structure
  • Pile foundation underpinning mechanism combined with subway station structure
  • Pile foundation underpinning mechanism combined with subway station structure

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Embodiment Construction

[0021] The technical solution in the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiment in the description is only used as an example, and all other embodiments obtained by those skilled in the art without making creative work, All belong to the protection scope of the present invention.

[0022] Such as Figure 1-Figure 10 As shown, this specific embodiment adopts the following technical scheme: it comprises underpinning beam 1, underpinning pile 2, underpinning column 3, underpinning column pile foundation 4 and pile foundation underpinning pre-top cap 5; underpinning beam 1 Underpinning piles 2 and underpinning columns 3 are respectively fixed at the bottom of the pile foundation underpinning pre-jack cap 5, the bottom of the underpinning column 3 is fixed in the underpinning column pile foundation 4, and the underpinning column 3 is pierced In the support of the subway station structure ...

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Abstract

The invention provides a pile foundation underpinning mechanism combined with a subway station structure, and relates to the technical field of municipal road construction. The pile foundation underpinning mechanism comprises an underpinning beam, an underpinning pile, an underpinning column, an underpinning column pile foundation and a pile foundation underpinning pre-jacking platform. The underpinning pile and the underpinning column are correspondingly fixed to the bottom of the underpinning beam through the pile foundation underpinning pre-jacking bearing platform, the bottom of the underpinning column is fixed in the underpinning column pile foundation in a penetrating mode, and the underpinning column is arranged in a subway station structure and a foundation pit inner support in a penetrating mode. A pile foundation underpinning structure and a subway station structure are combined and synchronously implemented and jointly stressed, the construction procedure is simplified, the construction cost is saved, and the construction period is shortened so as to overcome the defects existing in current pile foundation underpinning; and meanwhile, it can be guaranteed that the foundation pit is safe and stable, structural stress is reliable, and structural durability is not reduced.

Description

technical field [0001] The invention relates to the technical field of municipal road construction, in particular to a pile foundation underpinning mechanism combined with a subway station structure. Background technique [0002] Since the beginning of this century, my country's urban rail transit industry has entered a stage of explosive development. At the same time, urban ground transportation is also developing rapidly. The number of viaducts is increasing and the scale is increasing. The construction of subway stations will inevitably conflict with viaducts. However, if the viaduct is demolished and rebuilt blindly, it will seriously affect the traffic and cause a waste of resources. In order to save costs, speed up the construction period, and reduce the impact on ground traffic, underpinning measures are often taken for bridge pile foundations that conflict with subway stations. The traditional pile foundation underpinning requires new underpinning piles outside the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/12E02D27/14E02D17/04
CPCE02D17/04E02D27/12E02D27/14
Inventor 郭青黄辉张美琴谭佳魏坤华严东李永骝桑晓光姚亮李广涛梁海莹
Owner CHINA RAILWAY LIUYUAN GRP CO LTD
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