Soft clay soil improvement by preloading and wick drains, Exodo-Fertisa Project, Ecuador

Cedeño Palacios, Wendy; Zumba Aguirre, Josué

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dc.contributor.advisor	Carrión Mero, Paúl César , Director
dc.contributor.author	Cedeño Palacios, Wendy
dc.contributor.author	Zumba Aguirre, Josué
dc.creator	ESPOL.FICT
dc.date.accessioned	2025-02-04T18:02:31Z
dc.date.available	2025-02-04T18:02:31Z
dc.date.issued	2024
dc.identifier.citation	Cedeño Palacios, W. y Zumba Aguirre, J. (2024). Soft clay soil improvement by preloading and wick drains, Exodo-Fertisa Project, Ecuador. [Articulo de Titulación]. ESPOL.FICT .
dc.identifier.uri	http://www.dspace.espol.edu.ec/handle/123456789/63520
dc.description	X
dc.format	application/pdf
dc.format.extent	10 página
dc.language.iso	spa
dc.publisher	ESPOL.FICT
dc.rights	openAccess
dc.subject	Geotechnics
dc.subject	Settlement
dc.subject	Ground improvement
dc.subject	Geophysics
dc.subject	Wick drains and preloading
dc.title	Soft clay soil improvement by preloading and wick drains, Exodo-Fertisa Project, Ecuador
dc.type	Maestría en Geotecnia
dc.identifier.codigoespol	T-114835
dc.description.city	Guayaquil
dc.description.degree	Escuela Superior Politécnica del Litoral
dc.identifier.codigoproyectointegrador	POSTG114
dc.description.abstractenglish	Consolidation settlements are a worldwide problem in different soil types, in which infrastructure works are built to develop a city or community. In the Ecuadorian coastal region, soft clay soils predominate, which generate excessive differential settlements, causing human losses and economic damage. This research aims to evaluate the consolidation of soft clays in Duran-Ecuador by applying preloading with wick drains and comparing it with geophysical tests (pre- and post-application) to analyse the consolidation rate efficiency. The methodology consisted of the following phases: (i) review of reference studies; (ii) analysis and interpretation of existing geotechnical data; (iii) technical evaluation of soil improvement with preloading and wick drains; and (iv) pre- and post-construction geophysical surveys (project serviceability). Soil consolidation analysis with no improvement was expected to require 81 months. At the same time, preloading and wick drains were achieved in 6 months, reducing the consolidation time by 90%. Moreover, settlements between 70-90 cm were excessively high according to the Ecuadorian Construction Standard, whereas settlements between 9- 10 cm were expected by applying the improvement. Using geophysical tests, the improvement in the bearing capacity of the soil was determined through empirical correlations between the variation in electrical resistivity and soil void ratio. The combination of both methodologies (preloading and wick drains) in soft clay soils is an optimal solution for the reduction of consolidation time in the construction of a project.