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Indiffusible pile foundation construction method

A construction method and technology of pile foundation, which can be applied in basic structure engineering, sheet pile wall, construction, etc., can solve problems such as shield machine wrapping, ensure progress and safety, prevent shield machine from wrapping, and increase social benefits. and economic effects

Active Publication Date: 2016-02-03
CHINA TUNNEL CONSTR GUANGDONG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problem that the shield machine is wrapped around the pile foundation construction near the shield machine cutter head and cylinder body, the present invention provides a non-diffusion pile foundation construction method

Method used

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  • Indiffusible pile foundation construction method
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Embodiment Construction

[0020] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all the connection / connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions.

[0021] refer to Figure 1 ~ Figure 2 , non-diffusion pile foundation construction method, comprises the followi...

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Abstract

The invention discloses an indiffusible pile foundation construction method. The method comprises the following steps: a reinforcing hole is formed in the soil body near the barrel and the cutterhead of a shield tunneling machine; an anti-osmosis bag sleeves a pile foundation reinforcement cage; the anti-osmosis bag comprises the bottom part and the cylindrical surface of the pile foundation reinforcement cage; after pressure through holes are formed in the anti-osmosis bag located at the bottom part of the pile foundation reinforcement cage, the pile foundation reinforcement cage is lowered to the reinforcing hole; and after the pile foundation reinforcement cage is lowered to the bottom part of the reinforcing hole, the pressure through holes are blocked, and pile foundation concrete is poured until pouring is finished. By sleeving the pile foundation reinforcement cage with the anti-osmosis bag, the pile foundation concrete can be effectively prevented from spreading to the cutterhead and the barrel of the shield tunneling machine; while the soil body near the shield tunneling machine is effectively reinforced, the phenomenon that the shield tunneling machine is wrapped to stop caused by spreading of the pile foundation concrete can be avoided; the social benefit and the economic benefit are increased; and the progress and safety of a project can be effectively ensured. The indiffusible pile foundation construction method is applicable to prevention of concrete spreading in pile foundation construction.

Description

technical field [0001] The invention relates to a non-diffusion pile foundation construction method, which is suitable for some situations in which the pile foundation concrete is prevented from being mixed with the surrounding soil, and is particularly related to the need to control the pile body concrete diffusion and other structural isolation. Background technique [0002] In the shield tunneling construction, the construction of the shield machine opening and changing the tool is a construction process with high requirements for shield construction. Usually, the soil reinforcement operation will be carried out before opening the position and changing the tool. [0003] Reinforce the soil around the barrel of the shield machine and the cutter head. When pouring concrete for the pile foundation, the concrete is likely to spread to the area of ​​the cutter head and the barrel of the shield machine, causing the shield machine to be wrapped and affecting the subsequent shield...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38E02D5/66
Inventor 赖伟文林清基王安益何振宁黄文豪王辉
Owner CHINA TUNNEL CONSTR GUANGDONG
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