Abstract
The effect of dynamic compaction forces is ignored in the analysis and design of underground structures. Several failure cases have been reported in which longitudinal cracks are observed during installation and compaction processes. Because, in the current specifications, compacting forces are not considered as design parameters, this study aims at determining the effect of dynamic compaction forces on RC pipes of different sizes. Thus, complete nonlinear three-dimensional finite-element models of pipe and soil are developed and verified against full-scale experimental testing. Particularly, crack initiation and propagation are modeled and predicted. Finally, the effects of dynamic forces are identified on the RC pipe.
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