Abstract:

In the study, the behavior of the portability of the surface tape bases sitting near the sand shells was numerically studied. For this purpose, a prototype model was created and final elements for different conditions were analyzed. In the study, the PLAXIS computer program was used to solve with the final elements method. In the analyses, the impact of the swing angle, the degree of sand rigidity, the basic width and the distance of the base to the swing top, the behavior of the portability of the surface thread bases, has been studied. In the analyses, the Mohr-Coulomb material model was used and the safety numbers were obtained by performing the stability analysis of the shape for different shape angles and tightness conditions in the shape model. According to the results obtained at the end of the analysis, the transport capacity of the surface thread foundations sitting near the shell decreases due to the increase of the shell angle, while the increase depends on the degree of sand tightness, the basic width and the increase of the distance of the foundation to the shell top. The safety numbers obtained for the shell decrease due to the increase of the shell angle and increases due to the increase in the degree of sand tightness. As a result of the analyses, the migration mechanisms for the models discussed were studied and in the case of flat surface ground there was an approximately symmetrical distribution of the movement right under the base, while in the case of shed, the distribution of the movement was formed on the asymmetrical and shed surface, and the shed effect on the migration mechanism was reduced as it was removed from the shed top. The fact that the movement and retreat behavior which cannot be achieved by theoretical solutions can be achieved by the method of the final elements enables a better understanding of the immigration mechanism.

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