A supporting device applied to a multi-section tunnel prefabricated inverted arch block assembling device

By designing retractable support components and lifting and rotating components, the problem that existing support devices cannot adapt to multi-section tunnels has been solved, achieving stable support and cost reduction in different tunnel sections.

CN117189186BActive Publication Date: 2026-05-29CHINA RAILWAY CONSTR HEAVY IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY CONSTR HEAVY IND
Filing Date
2023-10-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing support devices cannot adapt to tunnel cross-sections of different diameters and shapes, especially irregular circular tunnel cross-sections formed by drill-and-blast construction, resulting in wasted equipment costs and unstable operation.

Method used

A prefabricated invert block assembly device for multi-section tunnels, including a support assembly and a lifting and rotating assembly, was designed. It utilizes telescopic middle and side support elements, adjusting cylinders and sliding components to adapt to different cross-sections and non-circular tunnels, ensuring stable support and flexible adjustment.

Benefits of technology

This technology enables stable support of the support device in multi-section tunnels, reduces equipment operating costs, and improves the adaptability and operational stability of the equipment in irregular tunnel sections.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a supporting device applied to a multi-section tunnel prefabricated inverted arch block assembling device, which comprises a supporting assembly and a jacking and rotating assembly. The supporting assembly comprises a supporting base, middle supporting leg elements, side supporting leg elements, a middle adjusting oil cylinder and side adjusting oil cylinders. The middle supporting leg elements are provided with telescopic middle supporting end portions, and the side supporting leg elements are provided with telescopic side supporting end portions; the middle adjusting oil cylinder is arranged between the two middle supporting end portions of a pair of middle supporting leg elements, the two ends of the middle adjusting oil cylinder are hinged to the corresponding middle supporting end portions, the side adjusting oil cylinders are arranged between the side supporting leg elements and the middle supporting leg elements; one end of the side adjusting oil cylinder is hinged to the side supporting portion of the side supporting leg element, and the other end of the side adjusting oil cylinder is hinged to the middle supporting leg element. The telescoping of the middle supporting leg elements and the side supporting leg elements is utilized to adapt to tunnels with different diameters.
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