Abstract
Abstract The stability behavior of pipelines on the ground surface or buried in relatively shallow trenches is studied by using the model of beam mode buckling. We model the pipelines as infinitely long, localized large deflection, and elastic‐plastic beams on elastic half space. The finite element method, boundary element method, and finite difference method are employed for the numerical solution. The numerical results show that the uplifted actions of pipes are in fluenced by plastic deformation, axial compression, soil foundation property, initial geometric imperfection, and inner content of the pipe. The pipe will possess higher ultimate axial compression when it has low imperfection height, rigid foundation, and heavy inner content.
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