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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 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.
Author: | Karlis Kukemilks, Martinš Vilnitis |
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URN: | urn:nbn:de:hbz:385-1-18243 |
DOI: | https://doi.org/10.3176/earth.2021.12 |
Parent Title (English): | Estonian Journal of Earth Sciences |
Publisher: | Estonian Academy Publishers |
Place of publication: | Tallinn |
Document Type: | Article |
Language: | English |
Date of completion: | 2021/09/21 |
Date of publication: | 2021/09/21 |
Publishing institution: | Universität Trier |
Contributing corporation: | The publication was funded by the Open Access Fund of Universität Trier and the German Research Foundation (DFG) |
Release Date: | 2022/03/15 |
Tag: | Gauja spillway valley; landslides; numerical models; slope stability modelling |
GND Keyword: | Burg Turaida; Modellierung; Rutschung |
Volume (for the year ...): | 2021 |
Issue / no.: | Band 70, Heft 4 |
Number of pages: | 11 |
First page: | 185 |
Last page: | 195 |
Institutes: | Fachbereich 6 / Raum- und Umweltwissenschaften |
Dewey Decimal Classification: | 9 Geschichte und Geografie / 91 Geografie, Reisen / 910 Geografie, Reisen |
Licence (German): | CC BY: Creative-Commons-Lizenz 4.0 International |