The purpose of this review paper was to take up the subject of using numerical methods in calculations of highly heterogeneous media, such as soil. The article deals mainly with the issue of stochastic nature and variability of soil parameters and the ways of describing it with mathematical tools. The two main computational approaches, Random Finite Element Method (RFEM) and Stochastic Finite Element Method (SFEM), have been presented in a simplified manner. In addition, the existing methods for generating random fields have been listed and one of them – Local Average Subdivision (LAS) – has been briefly described.
The paper deals with the contemporary idea ofsoil parameter used in the engineering- geological analysis. The statistical basis of a characteristic and a design value of the geotechnical parameter based on Eurocode 0 is given. On this basis the idea of soil parameter describing as a spline function and its use for subsoil probabilistic analysis is presented. Furthermore, correlation between the results of tests on undisturbed and reconstructed samples, based on diagrams from Polish Standard PN-B-03020:1981, is discussed. Finally, some conclusions regarding the necessity of a more advanced and complex approach to the engineering-geological analysis are proposed.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.