Geotechnical and Geophysical Assessment of the 2021 Tamban Chimbo Landslide, Northern Andes of Ecuador

Salinas Baquero,Tatiana Isela

DSpace Home
→
Unidades Académicas
→
Facultad de Ingeniería en Ciencias de la Tierra
→
Tesis de Maestría en Geotecnia
→
View Item

dc.contributor.advisor	Chunga Morán, Kervin Arturo, Director
dc.contributor.author	Salinas Baquero,Tatiana Isela
dc.creator	ESPOL.FICT
dc.date.accessioned	2025-02-04T15:04:54Z
dc.date.available	2025-02-04T15:04:54Z
dc.date.issued	2022
dc.identifier.citation	Salinas Baquero, T. I. (2022). Geotechnical and Geophysical Assessment of the 2021 Tamban Chimbo Landslide, Northern Andes of Ecuador. [Articulo de Titulación]. ESPOL.FICT .
dc.identifier.uri	http://www.dspace.espol.edu.ec/handle/123456789/63513
dc.description	X
dc.format	application/pdf
dc.format.extent	19 página
dc.language.iso	spa
dc.publisher	ESPOL.FICT
dc.rights	openAccess
dc.subject	Landslide trigger mechanism
dc.subject	Electrical tomography
dc.subject	Slope stability
dc.subject	Andean landslide hazard
dc.title	Geotechnical and Geophysical Assessment of the 2021 Tamban Chimbo Landslide, Northern Andes of Ecuador
dc.type	Maestría en Geotecnia
dc.identifier.codigoespol	T-114830
dc.description.city	Guayaquil
dc.description.degree	Escuela Superior Politécnica del Litoral
dc.identifier.codigoproyectointegrador	POSTG109
dc.description.abstractenglish	he recent landslide at the Tamban site, on 21 December 2021 (23:30 local time), provides rel evant information on the trigger mechanisms and their relationship with geological factors. Therefore, the predominant aims of the current study were to identify the lithological units in the rocky substrate and subsoil from geophysical surveys, delineating the thickness of the tuff- and lapilli-supported fall layers. Additionally, we evaluated the deformation dynamics from probabilistic and deterministic analysis, where a plane with well-differentiated discontinuities of normal-type geological fault was evidenced. This deformation feature was associated with a planar-type landslide that reached a debris flow up to 330 m distance, with varied thicknesses. Furthermore, we conducted a probabilistic analysis, which started from the characteristics of the post-slide material analyzed through triaxial trials that were conducted to a retro-analysis in order to obtain the parameters of the moment the event occurred. With the base parameters to perform the landslide analysis and determine its safety factors in compliance with current regulations, a reinforced earth configuration was applied using the Maccaferri?s Terramesh method. Hence, it was possible to provide an analysis methodology for further geological scenarios of landslides that occurred in the province of Bolívar, the northern Andes of Ecuador. Keywords: landslide trigger mechanism; electrical tomography; slope stability; Andean landslide hazard