Anchor rod structure, anchor rod construction method, and anchor rod body formed by the construction method

By setting up secondary grouting return channels and isolation structures in the anchor bolt structure, seepage prevention and corrosion prevention of the anchor bolt are achieved, solving the water leakage problem of traditional anti-buoyancy anchor bolts and improving the overall protective performance and safety of the anchor bolt.

CN117905055BActive Publication Date: 2026-07-28ZHEJIANG ZHONGQIAO PRESTRESSING EQUIP CO LTD
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Patent Information

Application Number
CN202410220515.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-02-28
Publication Date
2026-07-28
Estimated Expiration
2044-02-28

AI Technical Summary

Technical Problem

Traditional anti-buoyancy anchors suffer from low anchoring pull-out resistance, poor anti-disturbance stability, and weak corrosion and seepage resistance, leading to safety accidents such as leakage in building foundations. Existing technologies have failed to effectively solve the water leakage problem at the upper anchoring end of the anchor.

Method used

The design adopts an anchor bolt structure, including a busbar base material, a tensioning structure, and a fixing structure. An external isolation structure is set to form a secondary grouting return channel. Sealing and corrosion prevention are achieved through primary and secondary grouting media. A side grouting pipe is set in the anchor bolt structure to connect with the first annular structure, forming a U-shaped channel for secondary grouting.

Benefits of technology

This achieves seepage and corrosion prevention for the anchor body, avoids water leakage at the anchoring end, improves the overall protective performance of the anchor, and ensures the safety of the building foundation.

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Abstract

The application discloses an anchor rod structure, a construction method of the anchor rod and an anchor rod body formed by the construction method. The anchor rod structure comprises a bus base material, a tension structure and a fixing structure. The fixing structure is located at the lower end of the bus base material and is used for anchoring the lower part of the anchor rod structure. The tension structure is located at the upper end of the bus base material and is used for tensioning and locking the bus base material. The outside of the bus base material is provided with an isolation structure. The inside of the isolation structure and the outside of the bus base material form a first annular structure. The anchor rod structure further comprises a side grouting pipe. The side grouting pipe extends from the top of the anchor rod structure to the bottom. The bottom of the side grouting pipe is communicated with the bottom of the first annular structure. The internal space defined by the first annular structure and the side grouting pipe is isolated from the outside of the isolation structure and the side grouting pipe, and forms a secondary grouting and back discharge channel. Therefore, the problem of water seepage of the anchor rod in the later period can be solved, and the difficulty of water stopping in the later period and the engineering cost can be solved.
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