Study on the Impact of the Debris Flow in Bujiaoyida Gully on Tunnel Entrance Stability

DOI

10.2991/978-94-6463-658-1_41How to use a DOI?

Keywords

Mudslides; Tunnel entrance; Numerical simulation

Abstract

Taking the threat of debris flow disasters to the tunnel entrances along the Chengkun Railway as a backdrop, this study combines field data with numerical simulation using the discrete element software PFC^3D. The complex process of debris flow impacting tunnel entrances is highly destructive and consists of three stages: impact, overflow, and deposition, each presenting varying threats to structural safety. The results indicate that numerical simulations analyzed the accumulation patterns of debris flow impacts and their effects on portal stability under different spatial relationships, revealing that the force initially increases and then decreases, while the accumulation shape is closely related to the protective state.

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  - Bo Li
AU  - Jianjun Zhang
PY  - 2025
DA  - 2025/03/03
TI  - Study on the Impact of the Debris Flow in Bujiaoyida Gully on Tunnel Entrance Stability
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 407
EP  - 413
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_41
DO  - 10.2991/978-94-6463-658-1_41
ID  - Li2025
ER  -