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Method for correcting pile foundation offset through high-pressure grouting

A technology of high-pressure grouting and grouting piles, applied in infrastructure engineering, construction, etc., can solve problems such as potential safety hazards, deviation of railway bridge piers, and influence on normal operation of lines, so as to improve the effect of deviation correction and reduce the impact

Inactive Publication Date: 2020-09-04
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] For complex cities, with the construction of a large number of municipal projects, the high-speed rail line is affected by the construction of municipal roads on both sides (foundation treatment, pile foundation construction, road filling, etc.), and some railway piers within the scope of project influence have a large offset , has seriously affected the normal operation of the line, and there is a very large potential safety hazard, and correction work must be carried out

Method used

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  • Method for correcting pile foundation offset through high-pressure grouting
  • Method for correcting pile foundation offset through high-pressure grouting
  • Method for correcting pile foundation offset through high-pressure grouting

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see figure 1 and figure 2 , this embodiment discloses a method for correcting pile foundation offset by high-pressure grouting, including the following steps:

[0022] Set a stress relief structure on the opposite side of the line offset direction to release stress and induce displacement;

[0023] A number of high-pressure jet gro...

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Abstract

The invention discloses a method for correcting pile foundation offset through high-pressure grouting. The method comprises the following steps that a stress releasing structure is arranged on the opposite side at a line offset direction and used for releasing stress and inducing displacement; and a plurality of high-pressure jet grouting piles are constructed on one side at the line deviation direction, the jet pressure of the high-pressure jet grouting piles is used for applying reverse extrusion stress to a to-be-corrected pile foundation so as to achieve the offset correction effect of thebridge pile foundation. According to the method, the extrusion force is applied to the periphery of pile foundation soil through the high-pressure grouting method to move the offset pile foundation so as to achieve the purpose of correcting the displacement of the pile foundation.

Description

technical field [0001] The invention relates to the technical field of underground structure construction, in particular to a method for correcting pile foundation offset by high-pressure grouting. Background technique [0002] For complex cities, with the construction of a large number of municipal projects, the high-speed rail line is affected by the construction of municipal roads on both sides (foundation treatment, pile foundation construction, road filling, etc.), and some railway piers within the scope of project influence have a large offset , Seriously affecting the normal operation of the line, there is a very large safety hazard, and correction work must be carried out. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide a method for correcting the displacement of the pile foundation by high-pressure grouting, which uses high-pressure grouting to apply extrusion force to the surrounding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D35/00E02D15/04
CPCE02D15/04E02D35/00
Inventor 李文胜李庆许洋肖清华熊强
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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