Abstract
There have been many studies that have investigated the behavior of buried corrugated metal pipes (CMPs) in culvert applications. However, full-scale testing of buried culverts is a major undertaking since performing numerous large-scale tests is not always possible. A large-scale physical test was done on a corrugated metal pipe with a 1.52 m diameter under a monotonic loading test. The finite element modeling (FEM) tool (ABAQUS) was employed to verify and simulate different behaviors of a pipe-soil system. The finite element model showed a suitable match with the laboratory test results and properly identified local buckling as the failure mode for testing conditions, a CMP buried under shallow cover. The FE model indicated satisfactory performance in predicting the strains, bending moments, thrusts, and pressure distribution in the CMP. Subsequently, the behavior of CMP pipes was examined by increasing 25% and 100% in the burial depth and loading pad area, respectively. Results indicated that with an increase in the burial depth by 25%, the maximum deformation of the pipe at the crown decreased by approximately 31%. An increase in loading pad size by 100% led to a decrease in minimum factor safety at the crown by approximately 93%.
Published Version
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