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DC Field | Value | Language |
---|---|---|
dc.citation.number | 3 | - |
dc.citation.title | WATER | - |
dc.citation.volume | 12 | - |
dc.contributor.author | Kang, Sinhang | - |
dc.contributor.author | Cho, Sung-Eun | - |
dc.contributor.author | Kim, Byungmin | - |
dc.contributor.author | Go, Gyu-Hyun | - |
dc.date.accessioned | 2024-02-07T18:05:15Z | - |
dc.date.available | 2024-02-07T18:05:15Z | - |
dc.date.created | 2023-09-13 | - |
dc.date.issued | 2020-03 | - |
dc.description.abstract | Over 160 shallow landslides resulted from heavy rainfall that occurred in 26-27 July 2011 at Umyeon Mountain, Seoul, South Korea. To accurately reflect the fluid flow mechanism in the void spaces of soils, we considered the two-phase flow of water and air for rainfall infiltration analysis using available historical rainfall data, topographic maps, and geotechnical/hydrological properties. Variations in pore water and air pressure from the infiltration analysis are used for slope stability assessment. By comparing the results from numerical models applying single- and two-phase flow models, we observed that air flow changes the rate of increase in pore water pressure, influencing the safety factor on slopes with a low infiltration capacity, where ponding is more likely to occur during heavy rainfall. Finally, several slope failure assessments were conducted to evaluate the usefulness of using the two-phase flow model in forecasting slope stability in conditions of increased rainfall sums. We observed that the two-phase flow model reduces the tendency of over-prediction compared to the single-phase model. The results from the two-phase flow model revealed good agreement with actual landslide events. | - |
dc.identifier.bibliographicCitation | WATER, v.12, no.3 | - |
dc.identifier.doi | 10.3390/w12030812 | - |
dc.identifier.issn | 2073-4441 | - |
dc.identifier.scopusid | 2-s2.0-85082652752 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81342 | - |
dc.identifier.wosid | 000529249500197 | - |
dc.language | 영어 | - |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | - |
dc.title | Effects of Two-Phase Flow of Water and Air on Shallow Slope Failures Induced by Rainfall: Insights from Slope Stability Assessment at a Regional Scale | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Water Resources | - |
dc.relation.journalResearchArea | Water Resources | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | unsaturated soil slope | - |
dc.subject.keywordAuthor | rainfall infiltration | - |
dc.subject.keywordAuthor | two-phase fluid flow model | - |
dc.subject.keywordAuthor | slope stability | - |
dc.subject.keywordPlus | UNSATURATED SOIL SLOPES | - |
dc.subject.keywordPlus | DEBRIS FLOWS | - |
dc.subject.keywordPlus | HYDRAULIC CONDUCTIVITY | - |
dc.subject.keywordPlus | LANDSLIDE-PREDICTION | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | MICROMECHANICS | - |
dc.subject.keywordPlus | DEFORMATION | - |
dc.subject.keywordPlus | SATURATION | - |
dc.subject.keywordPlus | GEOTOP | - |
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