Recoverable constant-resistance large-deformation anchor rod structure and installation and recovery method

By designing a recyclable constant resistance and large deformation anchor structure, the problems of insufficient ductility, inconstant working resistance and inability to recycle existing anchor materials are solved, and the recycling and efficient anchoring effect of anchors are achieved, and the engineering flexibility and environmental protection are improved.

CN119641408AActive Publication Date: 2025-03-18CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +1
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Patent Information

Application Number
CN202411567471.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-03-18
Estimated Expiration
2044-11-05

AI Technical Summary

Technical Problem

During the application process, existing large deformation anchors have problems such as insufficient material ductility, inconstant working resistance, inability to recycle some anchors, leading to environmental pollution, large demolition workload, and affecting the progress of the project.

Method used

A recyclable constant resistance large deformation anchor structure is designed, including anchor section, resin anchoring agent medicine roll, anchor section conical head and anchor rod. The combined structure of the anchor body connecting sleeve, type I anchor section and type II anchor section is realized to remove and reinstall the anchor rod, and has flexible and efficient anchoring effect.

Benefits of technology

The recycling of anchor rods is realized, the demand for raw materials is reduced, environmental pollution is reduced, engineering flexibility and anchoring effect is improved, and the installation and removal process is simplified.

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Abstract

A recoverable constant-resistance large-deformation anchor rod structure comprises an anchoring section, an anchoring agent cartridge, an anchoring section conical head and an anchor rod, the anchor rod comprises an I-type anchor rod section and an II-type anchor rod section, and the I-type anchor rod section and the II-type anchor rod section are connected through an anchor rod body connecting sleeve. When a rotary connector of the sleeve pushing rotary rod rotates, the anchor rod body is driven to be connected with the sleeve, the I-type anchor rod section and the II-type anchor rod section. An octagonal sleeve upper connecting section of the anchor rod body connecting sleeve is connected with an II-type anchor rod section through threads on the inner wall of the octagonal sleeve upper connecting section, an octagonal sleeve lower connecting section is fixedly connected with an I-type anchor rod section through threads on the inner wall of the octagonal sleeve lower connecting section, and a middle separating section is used for separating the octagonal sleeve upper connecting section and the octagonal sleeve lower connecting section. The recyclable anchor rod can be recycled through disassembly and assembly after engineering is completed, the requirement for raw materials is reduced, sustainable utilization of resources is facilitated, the adverse effect on the environment is reduced, the recyclable anchor rod has high flexibility and can adapt to different engineering requirements, and due to the fact that the installation process of the recyclable anchor rod is relatively safe, the use risk is reduced.
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