Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
A reference state curve to define the state of soils over a wide range of pressures and densities
Year:2017
Research Areas
  • Information technology and adata processing
Information
Abstract
Granular materials exhibit a behaviour that is strongly dependent on density, effective confining pressure and grain characteristics. The complexity is such that, in the past, for a given sand, loose and dense specimens, or specimens subjected to very low or very high confining pressures were considered as different materials and were modelled as such, using different constitutive parameters. The introduction of the state parameter improved both understanding of the behaviour and modelling of granular materials. Several alternative definitions have been proposed for the state parameter but they suffer from some limitations, especially when sand is very loose, has fines, or is subjected to high confining pressures. The purpose of this paper is to describe those deficiencies and to introduce a new state index based on a novel reference state curve. The proposed reference state curve is then applied to understanding and predicting some important aspects of soil behaviour such as: (a) stress ratios at the peak point of undrained effective stress paths and (b) the ?reverse behaviour? of sandy soils that show an unusual behaviour in undrained shearing under high effective confining pressure.
International
Si
JCR
Si
Title
Geotechnique
ISBN
0016-8505
Impact factor JCR
2,395
Impact info
Volume
68
10.1680/jgeot.16.P.136
Journal number
2
From page
95
To page
106
Month
SIN MES
Ranking
Participants
  • Autor: Yousef Javanmardi
  • Autor: Reza Imam
  • Autor: Manuel Tomas Pastor Perez (UPM)
  • Autor: Diego Manzanal
Research Group, Departaments and Institutes related
  • Creador: Departamento: Matemática e Informática Aplicadas a la Ingenierías Civil y Naval
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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