Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Regional-Scale Landslide Hazard Analysis in Sensitive Clays Using an Integrated Approach
https://orcid.org/https://orcid.org/0000-0001-6954-5453
https://orcid.org/https://orcid.org/0000-0001-7749-3120
The Saguenay region in Quebec is largely covered by sensitive marine clays that are highly susceptible to large retrogressive landslides. This work addresses the development of a methodology to forecast slope failure and zonation of landslides in sensitive clays. This is demonstrated by applying an integrated approach to the Saint-Jean-Vianney (SJV) area located in Saguenay. Developing the 3D model, assessing geotechnical parameters through back analysis using the Rocscience-Slide software, and creating a risk zonation map are the three crucial phases of the proposed methodology. The first phase involved generating a 3D geological model of the surficial deposits of the selected area using borehole data and geophysical methods. In the second phase, realistic values of geotechnical parameters of the soil were obtained by performing a back analysis of a previously occurred landslide in the area of interest and combining it with experimental results from clay specimens retrieved from the same landslide. In the final phase, a zonation map of slopes is created using the derived geological model and geotechnical factors to assess the slopes at risk. This screening tool enables the identification of high-risk zones that would require a more detailed investigation. The proposed approach provides a useful tool for slope stability analysis in areas with similar geological conditions.
Regional-Scale Landslide Hazard Analysis in Sensitive Clays Using an Integrated Approach
https://orcid.org/https://orcid.org/0000-0001-6954-5453
https://orcid.org/https://orcid.org/0000-0001-7749-3120
The Saguenay region in Quebec is largely covered by sensitive marine clays that are highly susceptible to large retrogressive landslides. This work addresses the development of a methodology to forecast slope failure and zonation of landslides in sensitive clays. This is demonstrated by applying an integrated approach to the Saint-Jean-Vianney (SJV) area located in Saguenay. Developing the 3D model, assessing geotechnical parameters through back analysis using the Rocscience-Slide software, and creating a risk zonation map are the three crucial phases of the proposed methodology. The first phase involved generating a 3D geological model of the surficial deposits of the selected area using borehole data and geophysical methods. In the second phase, realistic values of geotechnical parameters of the soil were obtained by performing a back analysis of a previously occurred landslide in the area of interest and combining it with experimental results from clay specimens retrieved from the same landslide. In the final phase, a zonation map of slopes is created using the derived geological model and geotechnical factors to assess the slopes at risk. This screening tool enables the identification of high-risk zones that would require a more detailed investigation. The proposed approach provides a useful tool for slope stability analysis in areas with similar geological conditions.
Regional-Scale Landslide Hazard Analysis in Sensitive Clays Using an Integrated Approach
https://orcid.org/https://orcid.org/0000-0001-6954-5453
https://orcid.org/https://orcid.org/0000-0001-7749-3120
The Saguenay region in Quebec is largely covered by sensitive marine clays that are highly susceptible to large retrogressive landslides. This work addresses the development of a methodology to forecast slope failure and zonation of landslides in sensitive clays. This is demonstrated by applying an integrated approach to the Saint-Jean-Vianney (SJV) area located in Saguenay. Developing the 3D model, assessing geotechnical parameters through back analysis using the Rocscience-Slide software, and creating a risk zonation map are the three crucial phases of the proposed methodology. The first phase involved generating a 3D geological model of the surficial deposits of the selected area using borehole data and geophysical methods. In the second phase, realistic values of geotechnical parameters of the soil were obtained by performing a back analysis of a previously occurred landslide in the area of interest and combining it with experimental results from clay specimens retrieved from the same landslide. In the final phase, a zonation map of slopes is created using the derived geological model and geotechnical factors to assess the slopes at risk. This screening tool enables the identification of high-risk zones that would require a more detailed investigation. The proposed approach provides a useful tool for slope stability analysis in areas with similar geological conditions.
Regional-Scale Landslide Hazard Analysis in Sensitive Clays Using an Integrated Approach
Atlantis Highlights in Engineering
Hammah, Reginald E. (Herausgeber:in) / Javankhoshdel, Sina (Herausgeber:in) / Yacoub, Thamer (Herausgeber:in) / Azami, Alireza (Herausgeber:in) / McQuillan, Alison (Herausgeber:in) / Saeidi, Ali (Autor:in) / Richer, Blanche (Autor:in) / Chavali, Rama Vara Prasad (Autor:in) / Boivin, Maxime (Autor:in) / Rouleau, Alain (Autor:in)
Rocscience International Conference ; 2023 ; Toronto, ON, Canada
Proceedings of the Rocscience International Conference 2023 (RIC2023) ; Kapitel: 10 ; 101-108
07.11.2023
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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