Risk Assessment and Control of Highway Access Bridge Undercutting

DOI

10.2991/978-94-6463-856-1_22How to use a DOI?

Keywords

Highway reconstruction and expansion; undercutting of access bridge; risk assessment; deformation control; finite element numerical simulation

Abstract

This study is based on a highway reconstruction and expansion project focusing on the excavation beneath channel bridges, it may face the risk of structural damage to the old bridge and traffic safety accidents during the operation period. Employing finite element numerical simulations, the potential impacts of excavating under light-duty channel bridges and those with expanded foundations are investigated. The analysis assesses whether the deformation of the existing bridges remains within control standards when maintaining a 1-m safety distance during excavation. Additionally, recommendations for management and control measures for these excavations are provided. The results show that the deformation of the channel bridges meets the required control standards. However, for channel bridges incorporating ground beams, excavation is not permitted, and any excavation depth must not surpass the foundation depth of the existing bridge.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Haocheng Zhou
PY  - 2025
DA  - 2025/09/22
TI  - Risk Assessment and Control of Highway Access Bridge Undercutting
BT  - Proceedings of the 2025 International Conference on Resilient City and Safety Engineering (ICRCSE 2025)
PB  - Atlantis Press
SP  - 217
EP  - 229
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-856-1_22
DO  - 10.2991/978-94-6463-856-1_22
ID  - Zhou2025
ER  -