Intelligent truss temporary reinforcement system for zero-distance underpass of existing subway station

By using an intelligent truss temporary reinforcement system, which utilizes the compensation impact range identification and multi-point collaborative synchronous compensation module, combined with torsion occurrence analysis and follow-up support devices, the problem of traditional reinforcement methods being unable to make real-time adjustments during zero-distance underpass construction has been solved, achieving precise control and safe operation of the station structure.

CN122174581AActive Publication Date: 2026-06-09CHINA RAILWAY LIUYUAN GRP CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY LIUYUAN GRP CO LTD
Filing Date
2026-05-11
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional temporary reinforcement methods cannot adjust support parameters in real time when constructing underground subway stations at zero distance, resulting in a delayed response of the support system and an inability to effectively control the deformation of the existing station structure. Furthermore, the new construction method has a chain deformation effect, making it difficult to meet construction requirements.

Method used

An intelligent truss temporary reinforcement system is adopted. The system generates a mapping relationship through the compensation influence range identification module, drives the jacks to move in a coordinated manner through the multi-point collaborative synchronous compensation module, and combines the torsion occurrence degree analysis module and the follow-up support device to achieve active and follow-up compensation, ensuring the stability and smoothness of the station floor.

Benefits of technology

It achieved precise and coordinated control of the station floor, reduced the chain deformation effect, ensured the operational safety of the existing line during construction, and took into account both the continuity and efficiency of construction.

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Abstract

The present application belongs to the technical field of subway station construction, and provides an intelligent truss temporary reinforcement system for zero-distance underpass of existing subway station, comprising: a compensation influence range identification module: through historical displacement monitoring data, combined with the stiffness matrix model of the existing station structure and the stratum parameters, the associated nodes influenced by the jacking compensation of the to-be-compensated point are identified through numerical simulation, and a compensation influence mapping relationship is generated. Based on numerical simulation, the range of associated nodes influenced by the jacking compensation of any to-be-compensated point is identified in advance, and a quantitative compensation influence mapping relationship is generated. In the multi-point collaborative synchronous compensation module, the mapping relationship is used to screen the main control jack and its associated collaborative jacks, forming a to-be-compensated jack combination, ensuring that the compensation operation covers all possible affected areas, reducing the chain deformation effect caused by local jacking, and realizing precise collaborative control of the station floor.
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