Assessing Susceptibility to Soil Liquefaction Using the Standard Penetration Test (SPT)—A Case Study from the City of Portoviejo, Coastal Ecuador
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http://hdl.handle.net/10045/122500
Títol: | Assessing Susceptibility to Soil Liquefaction Using the Standard Penetration Test (SPT)—A Case Study from the City of Portoviejo, Coastal Ecuador |
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Autors: | Ortiz-Hernández, Eduardo | Chunga, Kervin | Pastor Navarro, José Luis | Toulkeridis, Theofilos |
Grups d'investigació o GITE: | Ingeniería del Terreno y sus Estructuras (InTerEs) |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Ingeniería Civil |
Paraules clau: | Standard penetration test | Soil liquefaction | Earthquake hazard | Pedernales earthquake | Ecuador |
Àrees de coneixement: | Ingeniería del Terreno |
Data de publicació: | 24-de març-2022 |
Editor: | MDPI |
Citació bibliogràfica: | Ortiz-Hernández E, Chunga K, Pastor JL, Toulkeridis T. Assessing Susceptibility to Soil Liquefaction Using the Standard Penetration Test (SPT)—A Case Study from the City of Portoviejo, Coastal Ecuador. Land. 2022; 11(4):463. https://doi.org/10.3390/land11040463 |
Resum: | The city of Portoviejo in coastal Ecuador was severely affected during the 16 April 2016, Pedernales earthquake (Mw 7.8). Various coseismic liquefaction phenomena occurred, inducing lateral spreading, sand boils, ground subsidence, and sinkholes in soils with poor geotechnical quality in the alluvial and alluvial–colluvial sedimentary environment. Therefore, the main aim of this study was to collect data from standard penetration tests (SPT) and shear velocity and exploratory trenches and to calculate the liquefaction potential index (LPI) by considering a corresponding seismic hazard scenario with an amax = 0.5 g. From these data, a liquefaction hazard map was constructed for the city of Portoviejo, wherein an Fs of 1.169 was obtained. It was determined that strata at a depth of between 8 and 12 m are potentially liquefiable. Our quantitative results demonstrate that the city of Portoviejo’s urban area has a high probability of liquefaction, whereas the area to the southeast of the city is less sensitive to liquefaction phenomena, due to the presence of older sediments. Our results are in accordance with the environmental effects reported in the aftermath of the 2016 earthquake. |
Patrocinadors: | This research was jointly supported by the Technical University of Manabí in Ecuador. With the particular support of the Soil and Concrete Mechanics laboratory “Suelcon & Asf”. |
URI: | http://hdl.handle.net/10045/122500 |
ISSN: | 2073-445X |
DOI: | 10.3390/land11040463 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.3390/land11040463 |
Apareix a la col·lecció: | INV - INTERES - Artículos de Revistas |
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