A rail self-driving adaptive damping device for operating in a tunnel

By utilizing a self-driven adaptive vibration reduction device, which employs a self-driven railcar chassis, liftable support legs, an expandable/foldable arched support frame, and a composite flexible pad, the problems of complex construction, high cost, and poor adaptability of existing vibration reduction devices are solved. This enables rapid response and efficient vibration reduction in narrow tunnel environments, improving construction safety and adaptability.

CN122407280APending Publication Date: 2026-07-17CENT SOUTH UNIV +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Filing Date
2026-03-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing vibration reduction devices are complex to install, costly, and have poor adaptability in blasting operations near operational tunnels. Furthermore, traditional monitoring methods pose safety risks and accuracy issues, making it difficult to achieve rapid response and efficient vibration reduction in narrow tunnel environments.

Method used

The device employs a self-driven adaptive vibration reduction system, which includes a self-driven railcar chassis, liftable support legs, an arched support frame that can be deployed/folded, a composite flexible pad, and an airbag assembly. It achieves rapid deployment and adaptive vibration reduction through a remote control system, utilizing the airbag assembly's air-filled fit with the tunnel lining and the composite flexible pad's multiple energy dissipation mechanisms.

Benefits of technology

It enables rapid and mobile deployment and efficient vibration reduction within operating tunnels, ensuring uniform and tight clamping force, significantly improving construction safety, economy, and adaptability, without affecting normal tunnel operation.

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Abstract

This invention discloses a self-driven adaptive vibration reduction device for use in adjacent operational tunnels, belonging to the field of tunnel blasting vibration control technology. The device includes a self-driven railcar chassis, liftable support legs, a deployable arched support frame connected by a hydraulic robotic arm, a composite flexible pad layer mounted on the arched support frame, an airbag assembly fixed to the outside of the composite flexible pad layer, and an inflation / deflation system. During operation, the device self-drives to the target section, the support legs rise to derail the railcar wheels, the frame unfolds, and the airbags inflate and adaptively press against the inner wall of the tunnel lining, forming a movable vibration-damping lining. This invention integrates self-driven movement, remote control, active airbag contact, and composite energy dissipation, achieving rapid, safe deployment and efficient vibration reduction in operational tunnels. It solves the problems of complex construction, poor adaptability, and difficulty in rapid response of traditional measures, and is particularly suitable for dynamic protection against adjacent blasting vibrations in narrow tunnel environments.
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