Experimental Modeling and Verification of Data Models for Foundation Elements

摘要

This paper explains the results of calculations of models of foundations and their comparison with the measured values. The aim of the calculation is mainly to verify the accuracy of the assignment of boundary conditions and calculation input parameters. Boundary conditions are primarily the soil properties, functions and parameters of contact interactions between the base structure and subsoil. Emphasis is placed on the results of the calculation and measurement of raft foundation (pilot-board), in terms of a homogeneous rigid subsoil clays. Preliminary calculation was made according to Czech standards, which is the application of Polous theory for linear elastic homogeneous soil. The calculations themselves were performed using computer programs based on the finite element method. Computational models are implemented on two- and three-dimensional elements. For the foundation soil, a "Mohr-Coulomb model" was used. For the structure material, both an 'elastic' model which does not consider material nonlinearity and a 'pile element' for checking skin friction force was used. The calculation results are presented in graphical form for easy comparison with the values of the experimental measurements.