Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Landslide Disaster Risk Reduction Through Slope Stabilization: A Case Study of eThekwini, KwaZulu Natal, South Africa
Landslides are a severe geological hazard which mainly occur when the forces which cause downward earth movement of a slope exceed the strength of the constituent materials. The main causes of landslides can be broadly categorized as hydrogeological, morphological and physical. The triggering mechanisms include human activities and natural causes such as excessive rainfall or snowfall, volcanic activity and seismic actions. In April 2022, a subtropical depression along the coastal region of eThekwini, KwaZulu Natal, South Africa caused intense precipitation averaging 200–450 mm over a five-day period. The cyclone impact resulted in the deadliest and most catastrophic landslides in recent times and unprecedented infrastructural damage.
The mass earth movements and associated deposits caused significant geomorphic alterations. In the aftermath of landslides, disaster risk reduction approaches are vital in minimizing the impact and for preventing further mass movements. In order to rehabilitate the failed slopes, this study investigated the geometries, geotechnical and morphological characteristics of the residual slopes. A susceptibility model of the zone was developed to classify the risk of sliding and an earth support system was designed to stabilize the slope. The computations demonstrated that landslide disaster risk reduction can be achieved through measures which predict and mitigate the likelihood of slope failure in geohazard areas.
Landslide Disaster Risk Reduction Through Slope Stabilization: A Case Study of eThekwini, KwaZulu Natal, South Africa
Landslides are a severe geological hazard which mainly occur when the forces which cause downward earth movement of a slope exceed the strength of the constituent materials. The main causes of landslides can be broadly categorized as hydrogeological, morphological and physical. The triggering mechanisms include human activities and natural causes such as excessive rainfall or snowfall, volcanic activity and seismic actions. In April 2022, a subtropical depression along the coastal region of eThekwini, KwaZulu Natal, South Africa caused intense precipitation averaging 200–450 mm over a five-day period. The cyclone impact resulted in the deadliest and most catastrophic landslides in recent times and unprecedented infrastructural damage.
The mass earth movements and associated deposits caused significant geomorphic alterations. In the aftermath of landslides, disaster risk reduction approaches are vital in minimizing the impact and for preventing further mass movements. In order to rehabilitate the failed slopes, this study investigated the geometries, geotechnical and morphological characteristics of the residual slopes. A susceptibility model of the zone was developed to classify the risk of sliding and an earth support system was designed to stabilize the slope. The computations demonstrated that landslide disaster risk reduction can be achieved through measures which predict and mitigate the likelihood of slope failure in geohazard areas.
Landslide Disaster Risk Reduction Through Slope Stabilization: A Case Study of eThekwini, KwaZulu Natal, South Africa
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) / Mudenge, S. T. (Autor:in) / Fourie, G. (Autor:in) / Sobhee-Beetul, L. (Autor:in) / Kalumba, D. (Autor:in)
Rocscience International Conference ; 2023 ; Toronto, ON, Canada
Proceedings of the Rocscience International Conference 2023 (RIC2023) ; Kapitel: 13 ; 127-133
07.11.2023
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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