Tunnel construction rapid escape device

The tunnel escape device, with its three-layer composite structure and honeycomb-shaped hollow design, solves the problems of impact resistance, weight, and functionality of existing escape pipes, achieving a lightweight, quick-assembly, and safe and controllable escape passage, thus improving escape efficiency and safety during tunnel construction.

CN224413700UActive Publication Date: 2026-06-26QINGDAO METRO GRP CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO METRO GRP CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing tunnel construction escape pipelines have defects in impact resistance, weight design, and functional design, resulting in obstructed passage, difficult transportation, time-consuming installation, and inability to meet emergency evacuation requirements.

Method used

The tube wall design adopts a three-layer composite structure, including a wear-resistant layer, an intermediate layer, and a protective outer layer. Combined with a honeycomb hollow structure, it has an internal axial track and is connected by plug-in interfaces and flanges. Equipped with a lightweight aluminum alloy escape trolley and safety devices, it ensures rapid assembly and efficient escape.

Benefits of technology

The system achieves a lightweight escape device, providing resistance to pressure, bending, and impact, ensuring the airtightness and watertightness of the passage, making the escape process safe and controllable, and improving the escape efficiency and safety of construction personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tunnel construction rapid escape device comprises a pipe body, the pipe wall of the pipe body is a three-layer composite structure, and the pipe wall is sequentially provided with a wear-resistant layer, an intermediate layer and a protective outer layer from inside to outside; the pipe wall is uniformly distributed with a honeycomb hollow structure, and an axially extending track is fixedly arranged on the inner wall of the pipe body; the three-layer composite structure composed of the wear-resistant layer, the intermediate layer and the protective outer layer from inside to outside is combined with the honeycomb hollow design, the overall weight is greatly reduced, the compression resistance, bending resistance and impact resistance are provided, and the rockfall, wear, corrosion and humid environment are effectively resisted; adjacent pipe bodies are connected through flanges through plug-in interfaces and adjacent tracks, modular rapid assembly is realized, the channel is air-tight, water-tight and the track has high straightness, and the construction efficiency is high.
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