Abstract
This paper is aimed to contribute to the analysis of three important aspects of soil-foundation interaction, which are not clearly investigated, by means of a detailed parametric study based on a finite elements modelling.
Highlights
These last four decades were marked by an unprecedented scientific interest in the finite element modelling applied to geotechnical engineering
Earliest work was presented by Duncan and Chang (1972) on the use of a hyperbolic stress-strain formulation in a finite element method for computing the settlements of a model strip footing in sand and a circular footing in a saturated undrained clay
The traditional aspect of shallow foundation design based on the analysis of the bearing capacity as well as on the settlement behaviour, it is recognized some aspects related to the soil/foundation interaction are not yet satisfactorily studied, among which the effect of the bedrock proximity on the load-settlement behaviour, the response of shallow foundations on a bi-layered soil, and the interaction between two closely spaced footings
Summary
These last four decades were marked by an unprecedented scientific interest in the finite element modelling applied to geotechnical engineering. Availability of several non linear constitutive law-based softwares has made possible to explore soil/structure phenomena besides difficult to access by traditional analytical elastic methods [1]. The traditional aspect of shallow foundation design based on the analysis of the bearing capacity as well as on the settlement behaviour, it is recognized some aspects related to the soil/foundation interaction are not yet satisfactorily studied, among which the effect of the bedrock proximity on the load-settlement behaviour, the response of shallow foundations on a bi-layered soil, and the interaction between two closely spaced footings. Based on a non linear 2D finite element modelling, this paper aims at contributing to understand these three aspects of the soil/foundation interaction as well as at proposing simple formulae for practical purposes. Due to the limited space allowed to this paper, the main results will be briefly presented
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