ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Geohazards and Georisks
Volume 13 - 2025 | doi: 10.3389/feart.2025.1598919
This article is part of the Research TopicNatural Disaster Prediction Based on Experimental and Numerical MethodsView all 21 articles
Numerical evaluation of design factors for effective debris flow mitigation of closed-type check dams
Provisionally accepted
- 1Korea Institute of Geoscience and Mineral Resources, Daejeon, Republic of Korea
- 2Chungnam National University, Daejeon, Republic of Korea
- 3Korea Forest Service, Seoul, Republic of Korea
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Debris flows are one of the major natural disasters originating from mountainous areas, causing severe casualties and property damage when occurring near populated areas. Consequently, establishing structural and non-structural countermeasures against debris flows is essential in hazard-prone regions. This study aims to identify the critical factors for determining optimal locations of check dams, which are highly effective structures for mitigating debris flow damage. Numerical simulations were conducted using debris flow incidents from Raemian Apartments on 2011 Mt. Umyeon in Seoul and 2019 Gallam-ri in Gangwon-do, Republic of Korea. The simulation outcomes were quantitatively analyzed using Spearman's rank correlation analysis. The results revealed that topographic features had a more significant impact on optimal check dam placement than flow characteristics. Specifically, check dams located at sites capable of storing large volumes of debris were the most effective in reducing debris flow damage.
Keywords: Debris flow, Check dam, Mitigation effect, numerical model, Landslides
Received: 24 Mar 2025; Accepted: 07 Jul 2025.
Copyright: © 2025 Lee, An, Kim and Lee. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Hyunuk An, Chungnam National University, Daejeon, Republic of Korea
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