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September 16, 2025Proceedings of the Institution of Civil Engineers - Geotechnical Engineering

Effects of fill material on load of concrete box culvert installed in trench – numerical analysis

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Authors

HLHao Liu

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Overview

Numerical analysis reveals how fill type and parameters affect soil-structure interaction in culverts.

Key Points

  • The soil-structure interaction factor decreased with increased Poisson's ratio and stiffness of the fill material.
  • Increasing fill cohesion and friction angle improved the soil-structure interaction for the culvert's bottom slab.
  • A more compacted fill typically resulted in a lower soil-structure interaction factor for the top slab of the culvert.
  • Contrary to expectations, a compacted fill did not always yield a lower interaction factor for the bottom slab.

Cite This Study

Hao Liu (2025) studied this question.

synapsesocial.com/papers/68d4565b31b076d99fa5b127https://doi.org/10.1680/jgeen.24.00453
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Also Consider

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  1. 1A Method to Analyze the Long-Term Durability Performance of Underground Reinforced Concrete Culvert Structures Under Coupled Mechanical and Environmental Loads2023 · 63 citations
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  3. 3Performance of a Reinforced Concrete Box Culvert Installed in Trapezoidal Trenches2013 · 49 citations
  4. 4Experimental Study and Numerical Simulation on Concrete Box Culverts in Trenches2009 · 39 citations