Research on Deformation Characteristics and Failure Modes of Tunnel Anchoring in Conglomerate Layers Based on Field Scaled Model Tests
Source abstract
Abstract
Tunnel anchors are critical for suspension bridge stability, yet their theoretical framework remains underdeveloped, limiting engineering applications. This study addresses this gap through a pioneering 1:12 in situ scaled model test, combining geological surveys, rock mechanics testing, and large-scale experimentation on a Yangtze River bridge case. Key findings include (1) quantified rock mechanics parameters for anchorage conglomerates, (2) load–displacement relationships revealing surrounding rock-dominated failure, and (3) deformation thresholds for anchor integrity. The 1:12 in situ model overcomes lab-scale limitations, providing the first high-fidelity validation of tunnel anchor behavior. The results offer essential design benchmarks, advancing both theory and practice for large-span bridges.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Geotechnical Engineering and Underground Structures · Geotechnical Engineering and Analysis · Rock Mechanics and Modeling
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Changjiang Survey, Planning, Design and Research Co., Ltd., Wuhan 430010, China
School of Earth Science and Engineering, Hohai University, Najing 210098, China
References (28)
Show source-provided references
1. Evaluation of dynamic response and local soil effects of the Evripos cable-stayed bridge using multi-sensor monitoring systems
2. Static and dynamic analyses of a suspension bridge with three-dimensionally curved main cables using a continuum model10.1016/j.engstruct.2018.01.062 ↗
3. A Comprehensive review of the mechanical behavior of suspension bridge tunnel-type anchorage
4. Paolo, C. (2024). Effects of Differential Displacements Between the Ground Anchors in Suspension Bridges. Infrastructures, 9.10.3390/infrastructures9110211 ↗
5. Gosteev, Y., Konovalov, I., Obukhovskiy, A., Salenko, S., Yashnov, A., and Lebedev, A. (2022). Numerical and Experimental Studies of the Use of Fiber-Reinforced Polymers in Long-Span Suspension Bridges. Energies, 15.10.3390/en15051864 ↗
6. Serviceability assessment for long-span suspension bridge based on deflection measurements10.1002/stc.2254 ↗
7. Analysis of the passive earth pressure on a gravity-type anchorage for a suspension bridge10.1186/s40703-020-00120-5 ↗
8. Design of looping cable anchorage system for New San Francisco-Oakland Bay Bridge main suspension span10.1061/(ASCE)1084-0702(2002)7:6(315) ↗
9. The Best as Enemy of the Good the Port Authority’s 4th Jetport, Lindenthal’s massive span over the Hudson, and the George Washington Bridge
10. San Francisco-Oakland Bay Bridge Anchor Rod Cracking Issues
11. Dehumidification slows corrosion of Forth Road Bridge cables
12. Cable erection of Shimotsui-Seto Bridge
13. Anti-pull mechanisms and weak interlayer parameter sensitivity analysis of tunnel-type anchorages in soft rock with underlying weak interlayers10.1016/j.enggeo.2019.03.012 ↗
14. Meyerhof, G. (1973, January 6–11). Uplift resistance of inclined anchors and piles. Proceedings of the 8th International Conference on Soil Mechanics and Foundation Engineering, Moscow, Russia.
15. A procedure for estimation of uplift capacity of rough piles10.3208/sandf1972.23.3_122 ↗
16. Aydan, Ö., Ebisu, S., and Komura, S. (1993). Pull-out tests of rock anchors and their failure modes. Assessment and Prevention of Failure Phenomena in Rock Engineering, CRC Press.10.2208/jscej.1994.504_157 ↗
17. Uplift capacity of single piles: Predictions and performance10.1007/s10706-006-9000-z ↗
18. Rheological characteristics of weak rock mass and effects on the long-term stability of slopes10.1007/s00603-013-0527-z ↗
19. A field model test method of tunnel-type anchorages in rock mass and its application in railway suspension bridge engineering10.1007/s00603-023-03534-6 ↗
20. Model test on the bearing behaviors of the tunnel-type anchorage in soft rock with underlying weak interlayers10.1007/s10064-019-01564-5 ↗
21. Field-scale experiment on deformation characteristics and bearing capacity of tunnel-type anchorage of suspension bridge10.3390/en15134772 ↗
22. Physical modelling of shaking table tests on dynamic soil-foundation interaction and numerical and analytical simulation10.1016/j.soildyn.2013.01.023 ↗
23. Bearing mechanism of a tunnel-type anchorage in a railway suspension bridge10.1007/s11629-020-6162-8 ↗
24. Lim, H., Chung, M., Ko, Y.-H., Lee, S., and Seo, S. (2021, January 10–14). Analysis of failure mode on tunnel-type anchorage by model tests and numerical analyses. Proceedings of the International Foundations Congress and Equipment Expo 2021, Dallas, TA, USA.10.1061/9780784483428.023 ↗
25. Evaluation of failure mode of tunnel-type anchorage for a suspension bridge via scaled model tests and image processing
26. Sang, S., Shi, X., Xiong, J., and Gan, C. (2024). Effect of Stratified Flow on the Vibration of Anchor Cables in a Submerged Floating Tunnel. J. Mar. Sci. Eng., 12.10.3390/jmse12040600 ↗
27. Ma, J., Li, Y., He, S., He, J., Liu, X., and Zhang, B. (2023). Mechanical Behavior of Anchor Bolts for Shallow Super-Large-Span Tunnels in Weak Rock Mass. Materials, 16.10.3390/ma16175862 ↗
28. AASHTO LRFD (2020). Bridge Design Specifications, American Association of State Highway and Transportation Officials.