Numerical Simulation of Steel Corrugated Pipe Culvert Backfilled with foam Concrete

DOI

10.2991/978-94-6463-658-1_82How to use a DOI?

Keywords

Corrugated pipe culvert; Numerical simulation; Foam concrete; soil pressure

Abstract

In order to understand the mechanical characteristics of foam concrete backfill steel corrugated pipe culvert, this paper uses numerical simulation to analyze the mechanical characteristics of foam concrete and pipe culvert structures with different backfill methods. The results show that when using 800kg/m³ foam concrete for backfilling, the foam concrete will fail when the filling height reaches 20~30m; However, when the filling height reaches 30~40m, the foam concrete will be damaged and become invalid. When the steel corrugated pipe culvert is backfilled as a whole, the vertical soil pressure on the culvert top shows a “W” - shaped distribution; When backfilling in layers, the vertical soil pressure on the culvert roof shows an “M” - shaped distribution. The stress distribution of steel corrugated pipes is manifested as tensile stress on the side of the pipe away from the center of the culvert, and compressive stress on both the top and bottom of the pipe, with the maximum compressive stress occurring at the top of the pipe; When the filling height is 20m, the maximum compressive stress of the layered backfilled steel corrugated pipe is -210.17MPa, and the maximum compressive stress of the overall backfilled steel corrugated pipe is -140.84MPa. There is stress concentration on the side of the steel corrugated pipe near the center of the culvert during layered backfilling.

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  - Pei-Yuan Li
AU  - Ben-Tian Yu
AU  - Yuan Feng
AU  - Sheng Li
AU  - Bao-Ping Jia
AU  - Yu-Ting Cai
PY  - 2025
DA  - 2025/03/03
TI  - Numerical Simulation of Steel Corrugated Pipe Culvert Backfilled with foam Concrete
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 788
EP  - 795
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_82
DO  - 10.2991/978-94-6463-658-1_82
ID  - Li2025
ER  -