Assessment of Soil Constitutive Models for Numerical Analysis of Buried Concrete Pipe Systems

Abstract The paper presents results of numerical calculations of a diaphragm wall model executed in Poznań clay formation. Two selected FEM codes were applied, Plaxis and Abaqus. Geological description of Poznań clay formation in Poland as well as geotechnical conditions on construction site in Warsaw city area were presented. The constitutive models of clay implemented both in Plaxis and Abaqus were discussed. The parameters of the Poznań clay constitutive models were assumed based on authors’ experimental tests. The results of numerical analysis were compared taking into account the measured values of horizontal displacements.

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A general approach to model interfaces using existing soil constitutive models application to hypoplasticity

Computers and Geotechnics ◽

10.1016/j.compgeo.2017.02.010 ◽

2017 ◽

Vol 87 ◽

pp. 115-127 ◽

Cited By ~ 8

Author(s):

H. Stutz ◽

D. Mašín ◽

A.S. Sattari ◽

F. Wuttke

Keyword(s):

Constitutive Models ◽

Soil Constitutive Models

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Numerical analysis of settlement of a high-rise building using two constitutive soil models

MATEC Web of Conferences ◽

10.1051/matecconf/201926204002 ◽

2019 ◽

Vol 262 ◽

pp. 04002

Author(s):

Leszek Chomacki

Keyword(s):

Numerical Analysis ◽

Constitutive Models ◽

Soil Parameters ◽

Geotechnical Parameters ◽

High Rise ◽

High Rise Building ◽

Perfectly Plastic ◽

Calculation Process ◽

Elastic Perfectly Plastic ◽

Key Parameter

One of the basic roles of foundations is to safely transfer loads from the structure to the subsoil in a controlled manner. Often a key parameter in deciding whether the foundation was designed correctly is the value of settlement of the building and the ground around it. This paper attempts to numerically reproduce the measured settlement of a high-rise building using geotechnical parameters already available. For this purpose, numerical calculations were carried out using two constitutive soil models: the elastic-perfectly plastic model with Mohr-Coulomb plastic criteria (MC) model and the Hardening Soil (HS) model. The resulting settlement values were compared with surveying measurements taken during and after the building’s construction. In the summary the results obtained with the use of different constitutive models, the calculation process and the adopted soil parameters are analysed and discussed.

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