A test device for evaluating the anti-burst performance of a shield segment lining ring
By designing a test device for shield tunnel segment lining rings, which includes a load-bearing beam, jacks, pressure plates, tie rods, and filling bags, the problem of assessing the failure characteristics of shield tunnel lining rings under internal explosive loads was solved, achieving efficient and reliable test results and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU RAILWAY GROUP CO LTD
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack experimental equipment for evaluating the failure characteristics and damage extent of shield tunnel lining rings under internal blast loads, resulting in the inability to accurately obtain blast-resistant design and post-disaster performance evaluation data for shield tunnel lining rings.
A test device was designed, comprising a load-bearing beam, jacks, pressure plates, tie rods, filling bags, and shield tunnel segment lining rings. A self-balancing system is formed by cross-arranging tie rods. Pressure is applied by jacks to simulate ground soil pressure. Tests are conducted using flexible filling bags and detachable components to simulate the effects of internal explosion loads.
It enables convenient disassembly and assembly, flexibly adapts to tests of lining rings of different sizes, improves the reliability and safety of test results, reduces test costs, simplifies the test process, and can be reused multiple times.
Smart Images
Figure CN122409385A_ABST