Static earth pressures on a pile supported excavation in Santiago gravel

Abstract Concrete soldier piles anchored in multiple levels are the most common method for supporting deep excavations in gravel. Their static design is based on limit equilibrium principles, although these procedures were originally developed for sheet piles or anchored walls on shallow excavations...

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Autores principales:	López,Sebastián, Sanhueza,Carola, Candia,Gabriel
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2019
Materias:	anchored piles excavations earth pressures Santiago gravel stiff soils
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000100089
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id	oai:scielo:S0718-915X2019000100089
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spelling	oai:scielo:S0718-915X20190001000892019-05-22Static earth pressures on a pile supported excavation in Santiago gravelLópez,SebastiánSanhueza,CarolaCandia,Gabriel anchored piles excavations earth pressures Santiago gravel stiff soils Abstract Concrete soldier piles anchored in multiple levels are the most common method for supporting deep excavations in gravel. Their static design is based on limit equilibrium principles, although these procedures were originally developed for sheet piles or anchored walls on shallow excavations supporting medium-dense sand. The present study draws on the applicability of current design tools to model the static response of deep excavations in stiff gravels and their implications for design. For this purpose, the static response of an anchored pile system was evaluated with a detailed finite element model of a case study, and the results are compared with simplified hand-calculation procedures. The study unit was the 28 m deep excavation of the Beauchef Poniente building located in the fluvial deposits of the Mapocho River in Santiago. A plain strain model was developed in PLAXIS using the Hardening Soil constitutive model, with parameters determined from large-scale triaxial tests of local gravels, and the computed pile displacement were compared to actual displacement profiles measured with inclinometers. The analysis shows that the simplified procedures provide a reasonably good approximation to the computed earth pressures, internal forces on the piles, and stress in the anchors.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.18 n.1 20192019-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000100089en10.7764/rdlc.18.1.87
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	anchored piles excavations earth pressures Santiago gravel stiff soils
spellingShingle	anchored piles excavations earth pressures Santiago gravel stiff soils López,Sebastián Sanhueza,Carola Candia,Gabriel Static earth pressures on a pile supported excavation in Santiago gravel
description	Abstract Concrete soldier piles anchored in multiple levels are the most common method for supporting deep excavations in gravel. Their static design is based on limit equilibrium principles, although these procedures were originally developed for sheet piles or anchored walls on shallow excavations supporting medium-dense sand. The present study draws on the applicability of current design tools to model the static response of deep excavations in stiff gravels and their implications for design. For this purpose, the static response of an anchored pile system was evaluated with a detailed finite element model of a case study, and the results are compared with simplified hand-calculation procedures. The study unit was the 28 m deep excavation of the Beauchef Poniente building located in the fluvial deposits of the Mapocho River in Santiago. A plain strain model was developed in PLAXIS using the Hardening Soil constitutive model, with parameters determined from large-scale triaxial tests of local gravels, and the computed pile displacement were compared to actual displacement profiles measured with inclinometers. The analysis shows that the simplified procedures provide a reasonably good approximation to the computed earth pressures, internal forces on the piles, and stress in the anchors.
author	López,Sebastián Sanhueza,Carola Candia,Gabriel
author_facet	López,Sebastián Sanhueza,Carola Candia,Gabriel
author_sort	López,Sebastián
title	Static earth pressures on a pile supported excavation in Santiago gravel
title_short	Static earth pressures on a pile supported excavation in Santiago gravel
title_full	Static earth pressures on a pile supported excavation in Santiago gravel
title_fullStr	Static earth pressures on a pile supported excavation in Santiago gravel
title_full_unstemmed	Static earth pressures on a pile supported excavation in Santiago gravel
title_sort	static earth pressures on a pile supported excavation in santiago gravel
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000100089
work_keys_str_mv	AT lopezsebastian staticearthpressuresonapilesupportedexcavationinsantiagogravel AT sanhuezacarola staticearthpressuresonapilesupportedexcavationinsantiagogravel AT candiagabriel staticearthpressuresonapilesupportedexcavationinsantiagogravel
_version_	1714206296446599168

Static earth pressures on a pile supported excavation in Santiago gravel

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