Three-dimensional Modeling to Evaluate the Effect of Dynamic Loads on the Deformation of Buried Pipes

Abstract

This study presents a series of numerical models formed with the aim of evaluating the behavior of buried pipes under the influence of dynamic loads resulting from the movement of vehicles by conducting a parametric study of the most important factors affecting the behavior of pipes, according to the finite difference method using FLAC 3D software. A numerical model was formed ti simulate the dynamic behavior of pipes taking into account the interaction between the soil and the pipe. The study showed that the diameter of the pipe has a clear impact on its response, the increase in the diameter of the pipe leads to a decrease in the soil settlement SSS and the vertical diametral strain VDS and the buried depth has an important effect on the response of the buried pipes, as it was noted in the research that the increase in the H/D causes an important effect on the response of the buried pipes, the increase in the H/D ratio leads to a decrease in the pipe crown settlement PCS and the vertical VDS.