Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling

Abstract This study involves an elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and the tunnel support. The strength and deformation properties have been determined using in-situ testing with equipment designed and patented by the Soil Engineering Re...

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Autores principales:	López-Gayarre,Fernando, Rodríguez Avial-Llardent,Mariano, Suárez-Domínguez,Francisco José, Álvarez-Fernández,Martina-Inmaculada, Prendes-Gero,María-Belén
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2019
Materias:	In-situ testing FLAC 2D modelling tunnel support excavation length elastoplastic analysis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000200258
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spelling	oai:scielo:S0718-915X20190002002582019-10-07Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modellingLópez-Gayarre,FernandoRodríguez Avial-Llardent,MarianoSuárez-Domínguez,Francisco JoséÁlvarez-Fernández,Martina-InmaculadaPrendes-Gero,María-Belén In-situ testing FLAC 2D modelling tunnel support excavation length elastoplastic analysis Abstract This study involves an elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and the tunnel support. The strength and deformation properties have been determined using in-situ testing with equipment designed and patented by the Soil Engineering Research Group at the University of Oviedo (GIITUO). The behaviour of the excavation face and the ideal trace are studied using a 2D model of the longitudinal cross section of the tunnel. In this work one study of the behaviour of the soil and the support during the different phases of excavation is given. From it, it is possible to say that in the initial phases of the excavation and with temporary support there are not significant deformations. Once the final support is applied, the maximum compressive stresses (7MPa) are concentrated in the crown zone and the maximum tensile stresses are in the base of the support of the top heading and the sidewalls (0.15-0.5 MPa).info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.18 n.2 20192019-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000200258en10.7764/rdlc.18.2.258
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	In-situ testing FLAC 2D modelling tunnel support excavation length elastoplastic analysis
spellingShingle	In-situ testing FLAC 2D modelling tunnel support excavation length elastoplastic analysis López-Gayarre,Fernando Rodríguez Avial-Llardent,Mariano Suárez-Domínguez,Francisco José Álvarez-Fernández,Martina-Inmaculada Prendes-Gero,María-Belén Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling
description	Abstract This study involves an elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and the tunnel support. The strength and deformation properties have been determined using in-situ testing with equipment designed and patented by the Soil Engineering Research Group at the University of Oviedo (GIITUO). The behaviour of the excavation face and the ideal trace are studied using a 2D model of the longitudinal cross section of the tunnel. In this work one study of the behaviour of the soil and the support during the different phases of excavation is given. From it, it is possible to say that in the initial phases of the excavation and with temporary support there are not significant deformations. Once the final support is applied, the maximum compressive stresses (7MPa) are concentrated in the crown zone and the maximum tensile stresses are in the base of the support of the top heading and the sidewalls (0.15-0.5 MPa).
author	López-Gayarre,Fernando Rodríguez Avial-Llardent,Mariano Suárez-Domínguez,Francisco José Álvarez-Fernández,Martina-Inmaculada Prendes-Gero,María-Belén
author_facet	López-Gayarre,Fernando Rodríguez Avial-Llardent,Mariano Suárez-Domínguez,Francisco José Álvarez-Fernández,Martina-Inmaculada Prendes-Gero,María-Belén
author_sort	López-Gayarre,Fernando
title	Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling
title_short	Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling
title_full	Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling
title_fullStr	Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling
title_full_unstemmed	Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling
title_sort	elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. in-situ testing and 2d modelling
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000200258
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Elastoplastic analysis of the effects of the advance of a double-track railway tunnel on the soil and on the tunnel support. In-situ testing and 2d modelling

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