Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción

The 27th February 2010 earthquake in central and south of Chile was a very strong test for recently constructed geosynthetics reinforced soil wall solutions as bridge abutments. This 8.8 moment magnitude subduction earthquake caused severe damage to several traditional reinforced concrete walls for...

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Autores principales:	González,Maribell, Villalobos,Felipe, Méndez,Alejandro, Carrillo,Pablo
Lenguaje:	English
Publicado:	Universidad Católica de la Santísima Concepción 2018
Materias:	geogrid reinforced soil wall static and seismic stability internal and external stability
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132018000200041
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spelling	oai:scielo:S0718-281320180002000412019-01-28Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in ConcepciónGonzález,MaribellVillalobos,FelipeMéndez,AlejandroCarrillo,Pablo geogrid reinforced soil wall static and seismic stability internal and external stability The 27th February 2010 earthquake in central and south of Chile was a very strong test for recently constructed geosynthetics reinforced soil wall solutions as bridge abutments. This 8.8 moment magnitude subduction earthquake caused severe damage to several traditional reinforced concrete walls for bridge abutments. However, no significant damage was found in relatively new geosynthetics reinforced solutions. For that reason, it is important to review the design and construction employed in these projects. To this end, a representative case located close to the epicentre is described and studied. Moreover, information is provided regarding the foundation soils, design and construction sequence of the geosynthetics reinforcement used for bridge abutments. The foundation soils were poor, corresponding mainly to marine and fluvial deposits close to the stream and mouth of the Andalién River. The analysis covers the verification of static and seismic external and internal stability. In addition, global static and seismic analyses are carried out. The methods used for the analyses are limit equilibrium and pseudo-static following recommendations of the FHWA. Results show that the design was adequate to cope with such a strong seismic event in terms of external and internal stability. Nevertheless, it was found that the inclusion of piles prevented a global seismic failure of the geogrid reinforced soil walls as bridge abutment. Final comments and remarks are presented related to design and construction which may explain the favourable performance of geosynthetics reinforced structures under this strong subduction earthquake.info:eu-repo/semantics/openAccessUniversidad Católica de la Santísima ConcepciónObras y proyectos n.24 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132018000200041en10.4067/s0718-28132018000200041
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	geogrid reinforced soil wall static and seismic stability internal and external stability
spellingShingle	geogrid reinforced soil wall static and seismic stability internal and external stability González,Maribell Villalobos,Felipe Méndez,Alejandro Carrillo,Pablo Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción
description	The 27th February 2010 earthquake in central and south of Chile was a very strong test for recently constructed geosynthetics reinforced soil wall solutions as bridge abutments. This 8.8 moment magnitude subduction earthquake caused severe damage to several traditional reinforced concrete walls for bridge abutments. However, no significant damage was found in relatively new geosynthetics reinforced solutions. For that reason, it is important to review the design and construction employed in these projects. To this end, a representative case located close to the epicentre is described and studied. Moreover, information is provided regarding the foundation soils, design and construction sequence of the geosynthetics reinforcement used for bridge abutments. The foundation soils were poor, corresponding mainly to marine and fluvial deposits close to the stream and mouth of the Andalién River. The analysis covers the verification of static and seismic external and internal stability. In addition, global static and seismic analyses are carried out. The methods used for the analyses are limit equilibrium and pseudo-static following recommendations of the FHWA. Results show that the design was adequate to cope with such a strong seismic event in terms of external and internal stability. Nevertheless, it was found that the inclusion of piles prevented a global seismic failure of the geogrid reinforced soil walls as bridge abutment. Final comments and remarks are presented related to design and construction which may explain the favourable performance of geosynthetics reinforced structures under this strong subduction earthquake.
author	González,Maribell Villalobos,Felipe Méndez,Alejandro Carrillo,Pablo
author_facet	González,Maribell Villalobos,Felipe Méndez,Alejandro Carrillo,Pablo
author_sort	González,Maribell
title	Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción
title_short	Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción
title_full	Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción
title_fullStr	Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción
title_full_unstemmed	Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción
title_sort	study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in concepción
publisher	Universidad Católica de la Santísima Concepción
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132018000200041
work_keys_str_mv	AT gonzalezmaribell studyofthestaticandseismicperformanceofageogridreinforcedsoilwallasbridgeabutmentinconcepcion AT villalobosfelipe studyofthestaticandseismicperformanceofageogridreinforcedsoilwallasbridgeabutmentinconcepcion AT mendezalejandro studyofthestaticandseismicperformanceofageogridreinforcedsoilwallasbridgeabutmentinconcepcion AT carrillopablo studyofthestaticandseismicperformanceofageogridreinforcedsoilwallasbridgeabutmentinconcepcion
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Study of the static and seismic performance of a geogrid reinforced soil wall as bridge abutment in Concepción

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