DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Shin-Gyu | ko |
dc.contributor.author | Kwon, Tae-Hyuk | ko |
dc.date.accessioned | 2021-12-14T06:41:34Z | - |
dc.date.available | 2021-12-14T06:41:34Z | - |
dc.date.created | 2021-12-14 | - |
dc.date.created | 2021-12-14 | - |
dc.date.created | 2021-12-14 | - |
dc.date.created | 2021-12-14 | - |
dc.date.issued | 2021-12 | - |
dc.identifier.citation | ENERGIES, v.14, no.23 | - |
dc.identifier.issn | 1996-1073 | - |
dc.identifier.uri | http://hdl.handle.net/10203/290525 | - |
dc.description.abstract | Debris flows are capable of flowing with high velocities and causing significant economic and infrastructural damage. As a hazard mitigation measure, physical barriers are frequently installed to dissipate the energy of debris flows. However, there is a lack of understanding on how barriers affect and interact with debris-flow behavior (e.g., velocity and volume). This study investigated the changes in debris-flow characteristics depending on the installation location of barriers. Mt. Woomyeon, which is located in Seoul, Korea, was the site of a major debris-flow event in 2011. This study modeled this event using DAN3D, numerical software based on smoothed particle hydrodynamics (SPH). Our numerical approach assessed changes in debris-flow behavior, including velocity and volume, as the debris flow interacts with four closed-type barriers installed at separate points along the flow path. We used DAN3D to model the barriers via terrain elevation modifications. The presence of a closed-type barrier results in the reduction in the debris-flow velocity and volume compared to when no barrier is present. Most notably, the closer a barrier is installed to the debris source, the greater the velocity decrease. By contrast, a barrier that is constructed further downstream allows the debris flow to undergo entrainment-driven growth before confronting the barrier, resulting in a larger debris deposition volume that can often cause overflow, as shown at our particular study site. The presented results highlight the effectiveness of barriers as a method of hazard mitigation by providing insight into how such installations can alter debris-flow behavior. In addition, the findings can provide a reference for future debris-flow barrier designs, increasing the effectiveness and efficiency of such barrier systems. | - |
dc.language | English | - |
dc.publisher | MDPI | - |
dc.title | A case study on the closed-type barrier effect on debris flows at Mt. Woomyeon, Korea in 2011 via a numerical approach | - |
dc.type | Article | - |
dc.identifier.wosid | 000742940100001 | - |
dc.identifier.scopusid | 2-s2.0-85120004298 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.issue | 23 | - |
dc.citation.publicationname | ENERGIES | - |
dc.identifier.doi | 10.3390/en14237890 | - |
dc.contributor.localauthor | Kwon, Tae-Hyuk | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | debris flowclosed-type barrierbarrier locationbarrier capacity | - |
dc.subject.keywordPlus | CHECK DAMSROCK AVALANCHESRUNOUT ANALYSISSPH MODELENTRAINMENTSIMULATION | - |
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