Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)

In the last few years, different numerical models for the study of railway vibrations in tunnels have been developed. Virtually all of them assume an elastic and linear behaviour of the soil. In this article the influence of soil constitutive model is investigated, comparing an "advanced"...

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Autores principales: Fernández Ruiz,Jesús, Medina Rodríguez,Luis
Lenguaje:English
Publicado: Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2015
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2015000300007
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spelling oai:scielo:S0718-915X20150003000072016-01-21Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)Fernández Ruiz,JesúsMedina Rodríguez,Luis advanced soil constitutive model soil stiffness railway vibrations tunnel building In the last few years, different numerical models for the study of railway vibrations in tunnels have been developed. Virtually all of them assume an elastic and linear behaviour of the soil. In this article the influence of soil constitutive model is investigated, comparing an "advanced" model of the soil called Hardening Soil model with small-strain stiffness (HSsmall) and the Mohr-Coulomb (MC) model. Moreover, the influence of soil stiffness has been studied when this is considered in the range of small strains (E50) or in the range of very small strains (E0). These models have been applied to a real case through a 2D finite element model formulated in the time domain, where it is concluded that both soil stiffness and the amplitude of the maximum tangential strain are the most important geotechnical parameters when estimating the deformational parameters and the constitutive models of the soil most adequate for the study of railway vibrations in tunnels.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.14 n.3 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2015000300007en10.4067/S0718-915X2015000300007
institution Scielo Chile
collection Scielo Chile
language English
topic advanced soil constitutive model
soil stiffness
railway vibrations
tunnel
building
spellingShingle advanced soil constitutive model
soil stiffness
railway vibrations
tunnel
building
Fernández Ruiz,Jesús
Medina Rodríguez,Luis
Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)
description In the last few years, different numerical models for the study of railway vibrations in tunnels have been developed. Virtually all of them assume an elastic and linear behaviour of the soil. In this article the influence of soil constitutive model is investigated, comparing an "advanced" model of the soil called Hardening Soil model with small-strain stiffness (HSsmall) and the Mohr-Coulomb (MC) model. Moreover, the influence of soil stiffness has been studied when this is considered in the range of small strains (E50) or in the range of very small strains (E0). These models have been applied to a real case through a 2D finite element model formulated in the time domain, where it is concluded that both soil stiffness and the amplitude of the maximum tangential strain are the most important geotechnical parameters when estimating the deformational parameters and the constitutive models of the soil most adequate for the study of railway vibrations in tunnels.
author Fernández Ruiz,Jesús
Medina Rodríguez,Luis
author_facet Fernández Ruiz,Jesús
Medina Rodríguez,Luis
author_sort Fernández Ruiz,Jesús
title Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)
title_short Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)
title_full Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)
title_fullStr Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)
title_full_unstemmed Application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2D numerical models: a real case in Madrid (Spain)
title_sort application of an advanced soil constitutive model to the study of railway vibrations in tunnels through 2d numerical models: a real case in madrid (spain)
publisher Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate 2015
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2015000300007
work_keys_str_mv AT fernandezruizjesus applicationofanadvancedsoilconstitutivemodeltothestudyofrailwayvibrationsintunnelsthrough2dnumericalmodelsarealcaseinmadridspain
AT medinarodriguezluis applicationofanadvancedsoilconstitutivemodeltothestudyofrailwayvibrationsintunnelsthrough2dnumericalmodelsarealcaseinmadridspain
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