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:: Volume 38, Issue 3 (2023) ::
GeoRes 2023, 38(3): 373-380 Back to browse issues page
Evaluation of the Vertical Piers Impact on Debris Flow Hazard Mitigation Using a Numerical Model
M. Galoie1 , A. Motamedi * 2
1- Civil Engineering Department, Faculty of Engineering, Imam Khomeini International University, Qazvin, Iran
2- Civil Engineering Department, Buein Zahra Technical University, Qazvin, Iran
Abstract:   (258 Views)
Aims: Debris Flow is a natural hazard phenomenon that frequently manifests suddenly, inflicting substantial economic and human losses. To date, numerous methodologies have been proposed to manage debris flow; however, the intricate nature of the governing equations renders the analysis of debris flow an exceedingly arduous and nearly unattainable task. The principal objective of this investigation was to assess the efficacy of vertical piers in mitigating debris flow.
Methodology: This particular study, characterized as an empirical-computational endeavor, transpired between the months of April and August in 2023. Its focus was centered on the Solqan region, situated in the northwestern vicinity of Tehran, an area notably susceptible to debris flow. Within this study, the influence of truncated concrete piers on the reduction of flow velocity and blockage was explored and replicated through employment of the RAMMS numerical model. To accomplish this, a variety of pier arrangements were considered at different junctures along the pathway of flow, with subsequent assessment of the modeling outcomes.
Findings: Among all the simulated scenarios, the scenario in which the piers were organized in a triangular shape pointing downwards exhibited the most noticeable impact on the reduction of momentum, inundation area, and run-out distance. Additionally, it is worth noting that if these piers were positioned in the lower section of the hill slope, their efficacy in halting the flow would be significantly enhanced.
Conclusion: The utilization of vertical piers along the course of the debris flow can yield a substantial decrease in the momentum, inundation area, and run-out distance associated with the debris flow phenomenon. The influence exerted by the collective presence of piers on the flow is contingent upon the configuration of the piers, their dimensions, as well as the spacing between them. By employing numerical models the optimal scenario can be determined and implemented.
Keywords: Debris Flow, RAMMS Software, Sulqan’s District, Debris Hazard Mitigation, Debris Flow Modeling
Full-Text [PDF 1130 kb]   (102 Downloads)    
Article Type: Original Research | Subject: natural geography
Received: 2023/08/8 | Accepted: 2023/09/20 | Published: 2023/10/2
* Corresponding Author Address: Civil Engineering Department, Buein Zahra Technical University, Imam Khomeini Boulevard, Buein Zahra, Qazvin, Iran. Postal Code: 3451745346 (artemis.mot@bzte.ac.ir)
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Galoie M, Motamedi A. Evaluation of the Vertical Piers Impact on Debris Flow Hazard Mitigation Using a Numerical Model. GeoRes 2023; 38 (3) :373-380
URL: http://georesearch.ir/article-1-1511-en.html


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Volume 38, Issue 3 (2023) Back to browse issues page
تحقیقات جغرافیایی Geographical Researches
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