A prefabricated assembly type lining construction method for tunnel lining disease

By installing prefabricated assembled lining structures and injecting special grouting materials into the damaged sections of tunnel linings, the problems of bulky structures, high construction risks, long construction periods, and high costs in traditional methods have been solved, achieving efficient reinforcement of railway, highway, and subway tunnels.

CN121138934BActive Publication Date: 2026-07-03BEIJING TIEKE SPECIAL ENG TECH CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING TIEKE SPECIAL ENG TECH CO LTD
Filing Date
2025-11-03
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional methods for treating tunnel lining defects suffer from problems such as bulky structures, high construction risks, long construction periods, high costs, and poor durability, making them particularly difficult to effectively address in railway, highway, and subway tunnels.

Method used

The prefabricated assembly lining construction method is adopted. By installing the prefabricated assembly lining structure in the lining defect section, and injecting special grouting material behind the lining structure and the existing lining, a concrete composite structure is formed. Circumferential rebar is added to improve the connection strength and stability.

Benefits of technology

It achieves reinforcement effects of high load-bearing capacity, short construction period and low cost for tunnel lining defects, and is applicable to the treatment of defects in railway, highway and subway tunnels.

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Abstract

This invention proposes a prefabricated assembly lining construction method for tunnel lining defects, comprising: installing prefabricated lining blocks in the tunnel using a staggered assembly method to form a prefabricated lining; the prefabricated blocks include standard blocks and adjusting blocks, wherein the standard blocks have the same shape and size, and the adjusting blocks are determined according to the measured perimeter of the tunnel's inner contour; implementing protective measures on the prefabricated lining, carrying out foundation construction, and pouring a concrete foundation according to the bottom elevation of the prefabricated lining; installing prefabricated components and adjusting the position of the prefabricated lining; carrying out rebar installation; followed by secondary foundation pouring and end sealing, and filling the gaps behind the lining.
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