Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Debris Flow Simulation for Dam Safety Assessment in Malaysia
Debris and mud floods are the last stages in the overall debris flow process. This event occurred in multiple catchments around Gunung Jerai on the 18th of August 2023, leading to flooding in several parts of the Yan District which situated to the west of Gunung Jerai. The debris flow disasters in Seri Perigi Catchment, Titi Hayun Catchment, and Batu Hampar Catchment show the consequences of natural temporary dam breaches resulting from two geomorphological setting: temporary landslide dams and narrow river mouth due to topography. This study used modelling and simulation techniques to compute the debris flow’s volume, velocity, momentum, and pressure resulting from the geological disaster. Debris flow simulation revealed a total volume of 64,364.69 m3 debris was recorded in the Seri Perigi Catchment area, 642,596.60 m3 total volume in the Titi Hayun Catchment, and 595,632.89 m3 total volume of debris flow in the Batu Hampar Catchment. The average velocity of this debris flow is between 12.90 m/s and 18.75 m/s with an average momentum between 20.96 kgm/s and 109.07 kgm/s. The field mapping, modelling, and simulation outcomes indicate significant geological events related to debris flow occur in Seri Perigi Catchment, Titi Hayun Catchment, and Batu Hampar Catchment. In contrast, other catchments faced comparatively minor debris flow or extreme water surge phenomena. With these simulations, it is possible to assess the potential future risks of geological disasters caused by debris flow and pinpoint the optimal location for the Sabo Dam. This information can greatly assist local authorities in devising and implementing both structural and non-structural mitigation plans.
Debris Flow Simulation for Dam Safety Assessment in Malaysia
Debris and mud floods are the last stages in the overall debris flow process. This event occurred in multiple catchments around Gunung Jerai on the 18th of August 2023, leading to flooding in several parts of the Yan District which situated to the west of Gunung Jerai. The debris flow disasters in Seri Perigi Catchment, Titi Hayun Catchment, and Batu Hampar Catchment show the consequences of natural temporary dam breaches resulting from two geomorphological setting: temporary landslide dams and narrow river mouth due to topography. This study used modelling and simulation techniques to compute the debris flow’s volume, velocity, momentum, and pressure resulting from the geological disaster. Debris flow simulation revealed a total volume of 64,364.69 m3 debris was recorded in the Seri Perigi Catchment area, 642,596.60 m3 total volume in the Titi Hayun Catchment, and 595,632.89 m3 total volume of debris flow in the Batu Hampar Catchment. The average velocity of this debris flow is between 12.90 m/s and 18.75 m/s with an average momentum between 20.96 kgm/s and 109.07 kgm/s. The field mapping, modelling, and simulation outcomes indicate significant geological events related to debris flow occur in Seri Perigi Catchment, Titi Hayun Catchment, and Batu Hampar Catchment. In contrast, other catchments faced comparatively minor debris flow or extreme water surge phenomena. With these simulations, it is possible to assess the potential future risks of geological disasters caused by debris flow and pinpoint the optimal location for the Sabo Dam. This information can greatly assist local authorities in devising and implementing both structural and non-structural mitigation plans.
Debris Flow Simulation for Dam Safety Assessment in Malaysia
Water Res.Develop.Managem.
Mohd Sidek, Lariyah (Herausgeber:in) / Salih, Gasim Hayder Ahmed (Herausgeber:in) / Ahmed, Ali Najah (Herausgeber:in) / Escuder-Bueno, Ignacio (Herausgeber:in) / Basri, Hidayah (Herausgeber:in) / Wahab, W. A. (Autor:in) / Aripin, Mohamad Faruq Syahmi Md (Autor:in) / Jaapar, Abd Rasid (Autor:in) / Omar, R. C. (Autor:in) / Isa, A. A. M. (Autor:in)
International Conference on Dam Safety Management and Engineering ; 2023 ; Kuala Lumpur, Malaysia
Proceedings of the 2nd International Conference on Dam Safety Management and Engineering ; Kapitel: 67 ; 963-974
05.02.2024
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Debris flow , Dam safety , Geohazard , Geomorphological analysis , Aerial photogrammetric mapping , Terrestrial laser scanner , Landslide Environment , Environmental Management , Water, general , Security Science and Technology , Risk Management , Environmental Economics , Pollution, general , Earth and Environmental Science
Some Case Studies on Debris Flow in Peninsular Malaysia
| British Library Conference Proceedings | 2008
Multiple Debris Flows as Emerging Threat to Dam Safety in Malaysia
| Springer Verlag | 2024
Rainfall Intensity (I)–Duration (D) Induced Debris Flow Occurrences in Peninsular Malaysia
| Springer Verlag | 2019
| British Library Conference Proceedings | 2000
Assessment Procedures for Lahars, Mudflows, Debris Flow and Debris Torrents
| British Library Conference Proceedings | 1993