Bridge reinforced concrete cast-in-place pile foundation

CN119266236AInactive Publication Date: 2025-01-07山东省地质矿产勘查开发局第七地质大队
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Patent Information

Application Number
CN202411822742.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-01-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the traditional reinforced concrete cast-injected pile foundation, under high groundwater conditions, the steel cage may cause excessive friction between the bottom and the side wall of the pile hole due to buoyancy shaking, affecting the construction quality.

Method used

A reinforced concrete cast-in pile foundation including anti-offset support ring, anti-offset assembly and buoyancy assembly was designed. The anti-offset assembly is driven by the buoyancy assembly to realize the guiding effect on the bottom of the main body of the steel cage to prevent offset and friction. .

Benefits of technology

It effectively avoids shaking and excessive friction of the steel cage when placed in the pile hole, and improves the construction quality and foundation stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention is suitable for the related field of foundation buildings, and provides a bridge reinforced concrete cast-in-place pile foundation which comprises a reinforcement cage body. The anti-deviation mechanism is located at the bottom of the reinforcement cage body and comprises an anti-deviation supporting ring, an anti-deviation assembly and a buoyancy assembly used for driving the anti-deviation assembly to work, and the anti-deviation supporting ring is fixedly installed at the bottom of the reinforcement cage body and located on the inner side of the reinforcement cage body; the anti-deviation supporting ring is arranged in the circumferential direction of the anti-deviation supporting ring, the anti-deviation assemblies are arranged in the circumferential direction of the anti-deviation supporting ring, and the anti-deviation assemblies are connected with the buoyancy assembly. Through cooperative arrangement of the anti-deviation supporting ring, the anti-deviation assemblies and the buoyancy assembly, the situation that when the underground water level is high, water generates buoyancy on the reinforcement cage is avoided, and the anti-deviation supporting ring is prevented from being damaged; and the problem that the bottom of the reinforcement cage shifts due to excessive friction with the side wall of the pile hole, so that the construction quality is influenced is solved.
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Citation Information

Patent Citations

  • Device for preventing drilling bored concrete pile steel reinforcement cage is eccentric

    CN208633099U

  • Accurate positioning device for anti-inclination cast-in-place pile reinforcement cage

    CN213204095U

  • Anti-floating device of cast-in-place pile reinforcement cage

    CN214832942U

  • Accurate erection method and equipment for steel frame column under ground surface of reverse construction method

    JP1996120673A

  • Micropile construction method for pretention

    KR101584054B1

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