Stretching type anchor plate ground anchoring device and construction method thereof

By designing an extendable anchor plate ground anchor device, and utilizing the anchor plate assembly connected by a drive mechanism and hinges, the problems of low bearing capacity and poor construction quality reliability of existing anchor bolts are solved, achieving efficient provision of anchoring force and tensile strength, and reducing construction difficulty and soil damage.

CN117449297BActive Publication Date: 2026-06-19FENGMO (CHANGZHOU) ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FENGMO (CHANGZHOU) ENG TECH CO LTD
Filing Date
2023-10-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing anchor bolts have low bearing capacity and poor construction quality reliability. Cast-in-place concrete tensile piles consume a lot of materials and have a long construction period. Precast concrete tensile piles have poor bearing capacity at the joints and poor anchor bolt durability.

Method used

Design a retractable anchor plate ground anchor device, including a drive mechanism and a ground anchor mechanism. The anchor plate assembly is connected by a hinge and can switch between a tightened and extended state. The anchor plate forms a large area in the soil, providing a large anchoring force and tensile strength. The state switching is controlled by a hydraulic rod.

Benefits of technology

It improves the load-bearing capacity and construction quality reliability of the anchor structure, reduces construction difficulty and soil damage, provides immediate and reliable tensile strength, and has a high cost-performance ratio.

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Abstract

This invention discloses an extendable anchor plate ground anchor device and its construction method. The extendable anchor plate ground anchor device includes a drive mechanism and an anchor mechanism connected to the drive mechanism. The anchor mechanism includes a frame, an anchor plate support, a first connecting rod, and an anchor plate assembly. The anchor plate support extends through the frame along the Y-axis. The first connecting rod is located within the frame, and its upper end extends through the frame. The anchor plate assembly includes a support block and two anchor plates connected to the support block. The two anchor plates are located on opposite sides above the support block. This invention first drives the anchor mechanism into the designed soil depth, then unfolds the anchor plate to form a large-area anchor plate perpendicular to the direction of force. The anchor plate's compression of the soil provides greater anchoring force and better deformation constraint. Compared to constant-section friction piles, this structure consumes less material, provides greater bearing capacity, and improves construction quality and reliability.
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