Application of Different Constitutive Soil Models to Soil Settlement Under Embankment
摘要
The paper considers the application of different constitutive soil models to soil settlement in the road body. It also compares settlement results obtained by software analysis, with the value of settlement measured by geodetic instruments during the exploitation of the road. The software analysis was carried out in softwares based on the FEM for 5 different constitutive soil models: Linear elastic, Mohr-Coulomb, Drucker-Prager, Hardening soil model and Hardening soil model with small strain stiffness. The analysis of soils behavior from examples with and without plasticity activation is presented. Geodetic measurements were carried out on a benchmarks installed at the top and in the foot of the embankment in the periods after the construction of the embankment as an initial measurement, and during exploitation of 4 months, 19 months and 56 months. The basics of the finite element method, as well as the 5 mentioned constitutive soil models, are also given.