Three-dimensional slope stability model of the Turaida castle mound

The state-of-the-art finite element software Plaxis 3D was applied in a real-world study site of the Turaida castle mound to investigate the slope stability of the mound and understand the mechanisms triggering landslides there. During the simulation, the stability of the castle mound was analysed a...

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Autores principales:	Kārlis Kukemilks, Mārtiņš Vilnītis
Formato:	article
Lenguaje:	EN
Publicado:	Estonian Academy Publishers 2021
Materias:	landslides slope stability modelling numerical models gauja spillway valley. Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/5cad34a9a5c340a7b2a44afba8c3859e
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spelling	oai:doaj.org-article:5cad34a9a5c340a7b2a44afba8c3859e2021-11-16T14:59:57ZThree-dimensional slope stability model of the Turaida castle mound1736-47281736-755710.3176/earth.2021.12https://doaj.org/article/5cad34a9a5c340a7b2a44afba8c3859e2021-09-01T00:00:00Zhttps://kirj.ee/wp-content/plugins/kirj/pub/earth-4-2021-185-195_20210921124618.pdfhttps://doaj.org/toc/1736-4728https://doaj.org/toc/1736-7557The state-of-the-art finite element software Plaxis 3D was applied in a real-world study site of the Turaida castle mound to investigate the slope stability of the mound and understand the mechanisms triggering landslides there. During the simulation, the stability of the castle mound was analysed and the most landslide-susceptible zones of hillslopes were determined. The 3D finite-element stability analysis has significant advantages over conventional 2D limit-equilibrium methods where locations of 2D stability sections are arbitrarily selected. Two modelling scenarios of the slope stability were elaborated considering deep-seated slides in bedrock and shallow landslides in the colluvial material of slopes. The model shows that shallow slides in colluvium are more probable. In the finite-element model, slope failure occurs along the weakest zone in colluvium, similarly to the situation observed in previous landslides in the study site. The physical basis of the model allows results to be obtained very close to natural conditions and delivers valuable insight in triggering mechanisms of landslides.Kārlis KukemilksMārtiņš VilnītisEstonian Academy Publishersarticlelandslidesslope stability modellingnumerical modelsgauja spillway valley.GeologyQE1-996.5ENEstonian Journal of Earth Sciences, Vol 70, Iss 4, Pp 185-195 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	landslides slope stability modelling numerical models gauja spillway valley. Geology QE1-996.5
spellingShingle	landslides slope stability modelling numerical models gauja spillway valley. Geology QE1-996.5 Kārlis Kukemilks Mārtiņš Vilnītis Three-dimensional slope stability model of the Turaida castle mound
description	The state-of-the-art finite element software Plaxis 3D was applied in a real-world study site of the Turaida castle mound to investigate the slope stability of the mound and understand the mechanisms triggering landslides there. During the simulation, the stability of the castle mound was analysed and the most landslide-susceptible zones of hillslopes were determined. The 3D finite-element stability analysis has significant advantages over conventional 2D limit-equilibrium methods where locations of 2D stability sections are arbitrarily selected. Two modelling scenarios of the slope stability were elaborated considering deep-seated slides in bedrock and shallow landslides in the colluvial material of slopes. The model shows that shallow slides in colluvium are more probable. In the finite-element model, slope failure occurs along the weakest zone in colluvium, similarly to the situation observed in previous landslides in the study site. The physical basis of the model allows results to be obtained very close to natural conditions and delivers valuable insight in triggering mechanisms of landslides.
format	article
author	Kārlis Kukemilks Mārtiņš Vilnītis
author_facet	Kārlis Kukemilks Mārtiņš Vilnītis
author_sort	Kārlis Kukemilks
title	Three-dimensional slope stability model of the Turaida castle mound
title_short	Three-dimensional slope stability model of the Turaida castle mound
title_full	Three-dimensional slope stability model of the Turaida castle mound
title_fullStr	Three-dimensional slope stability model of the Turaida castle mound
title_full_unstemmed	Three-dimensional slope stability model of the Turaida castle mound
title_sort	three-dimensional slope stability model of the turaida castle mound
publisher	Estonian Academy Publishers
publishDate	2021
url	https://doaj.org/article/5cad34a9a5c340a7b2a44afba8c3859e
work_keys_str_mv	AT karliskukemilks threedimensionalslopestabilitymodeloftheturaidacastlemound AT martinsvilnitis threedimensionalslopestabilitymodeloftheturaidacastlemound
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Three-dimensional slope stability model of the Turaida castle mound

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