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dc.contributor.authorChen, Hung-Enen_US
dc.contributor.authorChiu, Yen-Yuen_US
dc.contributor.authorTsai, Tung-Linen_US
dc.contributor.authorYang, Jinn-Chuangen_US
dc.date.accessioned2020-10-05T02:01:02Z-
dc.date.available2020-10-05T02:01:02Z-
dc.date.issued2020-05-01en_US
dc.identifier.urihttp://dx.doi.org/10.3390/w12051229en_US
dc.identifier.urihttp://hdl.handle.net/11536/155081-
dc.description.abstractTo analyze the effect of runoff on shallow landslides, a model coupling one-dimensional rainfall-runoff and two-dimensional infiltration was established to simulate rainfall, infiltration, and runoff processes. Based on Bishop's limit equilibrium method, the slope failure of a hypothetical footslope was studied. First, conditions with and without inflow were compared. The results reveal a remarkable difference in factors of safety (FS) between the two conditions, suggesting that considering the effect of runoff is crucial for landslide modeling. In terms of a series of tests of the various magnitudes, durations, lag-time, and peak position of the hydrograph, analyses show that larger inflow leads to more accumulated infiltration and triggers landslides earlier. A long-term duration inflow decreases the stability more than short intensive inflow does. With subsequent surface inflow, slope failure may occur after rainfalls stop, owing to the inflow, and the shape of inflow hydrographs could slightly affect the variance in FS. Results also indicate the necessity of considering the surface runoff when using a numerical model to analyze landslide, particularly on a footslope.en_US
dc.language.isoen_USen_US
dc.subjectshallow landslideen_US
dc.subjectrainfall-runoffen_US
dc.subjectnumerical modelen_US
dc.subjectslope stabilityen_US
dc.titleEffect of Rainfall, Runoff and Infiltration Processes on the Stability of Footslopesen_US
dc.typeArticleen_US
dc.identifier.doi10.3390/w12051229en_US
dc.identifier.journalWATERen_US
dc.citation.volume12en_US
dc.citation.issue5en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department防災與水環境研究中心zh_TW
dc.contributor.departmentDisaster Prevention and Water Environment Research Centeren_US
dc.identifier.wosnumberWOS:000555915200008en_US
dc.citation.woscount0en_US
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