Tunnel corrugated steel plate reinforcing device

By introducing sealing and protective structures into the tunnel corrugated steel plate reinforcement device, combined with rapid positioning and stabilization measures, the problems of bolt corrosion and loosening were solved, achieving bolt protection and improved structural stability.

CN224300903UActive Publication Date: 2026-05-29CHINA FIRST HIGHWAY ENGINEERING CO LTD
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Patent Information

Application Number
CN202521249799.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-05-29
Estimated Expiration
2035-06-18

AI Technical Summary

Technical Problem

Existing tunnel corrugated steel plate reinforcement devices are prone to corrosion in humid and corrosive environments, which leads to a decrease in bolt preload, an increase in loosening gaps, and a reduction in the overall integrity of the reinforced structure.

Method used

A reinforcement device comprising a corrugated plate, a connecting plate, a sealing block, a protective shell, a rectangular strip, and a limiting component is designed. The bolts are covered by a sealing groove, a sealing strip, and a protective shell. The threaded holes are quickly positioned by combining a plug-in block and a plug-in groove. Anti-loosening washers and nuts are used to improve the preload and stability of the bolts.

Benefits of technology

It effectively prevents bolts from rusting in humid environments, reduces the risk of loosening, improves installation efficiency and structural stability, and enhances the reinforcement effect of corrugated steel plates.

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Abstract

The utility model belongs to the technical field of corrugated steel plates, and particularly relates to a tunnel corrugated steel plate reinforcing device which comprises a corrugated plate. A connecting plate is fixedly connected to the top of the corrugated plate, a sealing block is fixedly connected to the side wall of the top of the connecting plate, a sealing groove is formed in the top of the sealing block, a protection assembly is arranged on the side wall of the corrugated plate and comprises a protection shell, the protection shell is slidably connected to the side wall of the corrugated plate, and a rectangular strip is fixedly connected to the top of the protection shell. A limiting assembly is arranged in the middle of the rectangular strip, a sealing strip is fixedly connected to the bottom of the protective shell, a bolt is connected to the side wall of the bottom of the corrugated plate in a penetrating and threaded mode, and a threaded hole is formed in the position, located at the bottom of the sealing block, of the side wall of the connecting plate. And the bolts for fixing the corrugated plates can be protected, and it is guaranteed that after the multiple sets of corrugated plates are fixed together through the bolts, the loosening risk of the bolts caused by external erosion is reduced to some extent.
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