On the Boundaries of Computational Schemes for Numerical Solution of Temperature and Deformation Problems in Geotechnics

Abstract

Numerical methods are used to solve geotechnical problems. This is primarily due to the need for joint calculations when complex objects interacting with the ground base are modeled. The calculation time depends on the number of finite elements, which in turn depends on the size of the models. The accuracy of the results is determined by the correct formulation of the problem, which involves defining the boundaries of the computational model. Comparisons show that limiting the size of the calculated area from below for problems on the stress-strain state of the base leads to a decrease in the calculated precipitation compared to the elastic half-space. Limiting the size from the sides leads to the effect of raising the surface at the lateral boundaries of the computational scheme. For thermophysical calculations, the boundaries must be located outside the front of significant thermal impact for the entire calculated period of the object's existence.