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Debris Run-Out Modeling Without Site-Specific Data

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dc.contributor.author De Silva, N.M.T.
dc.contributor.author Wimalaratne, P.
dc.date.accessioned 2021-07-07T07:29:09Z
dc.date.available 2021-07-07T07:29:09Z
dc.date.issued 2020
dc.identifier.citation de Silva, N. M. T., & Wimalaratne, P. (2020). Debris Run-Out Modeling Without Site-Specific Data. International Journal of Advanced Computer Science and Applications, 11(10). https://doi.org/10.14569/ijacsa.2020.0111015 en_US
dc.identifier.uri http://repository.kln.ac.lk/handle/123456789/23108
dc.description.abstract Recent population growth and actions near hilly areas increase the vulnerability of occurring landslides. The effects of climate change further increase the likelihood of landslide danger. Therefore, accurate analysis of unstable slope behavior is crucial to prevent loss of life and destruction to property. Predicting landslide flow path is essential in identifying the route of debris, and it is essential necessary component in hazard mapping. Horvever, current methodologies of determining the flow direction of landslides require costly sitespecific data such as surface soil type, categories of underground soil layers, and other related field characteristics. This paper demonstrates an approach to predict the flow direction without site-specific data, taking a large landslide incident in Sri Lanka at Araranyaka region in the district of Kegalle as a case study. Spreading area assessment was based on deterministic eight-node (D8) and Multiple Direction Flow (MDF) flow directional .algorithms. Results acquired by the model were compared with the real Aranayaka landslide data set and the landslide hazard map of the area. Debris paths generated from the proof of concept software tool using the D8 algorithm showed greater than 760/o agreement, and MDF showed greater than 87oh agreement with the actual flow paths and other related statistics such as maximum width of the slide, run-out distance, and slip surface area. en_US
dc.publisher International Journal of Advanced Computer Science and Applications en_US
dc.subject Landslide flow path, route of debris, hazard mapping, D8 Algorithm, multiple direction tlow algorithnr en_US
dc.title Debris Run-Out Modeling Without Site-Specific Data en_US


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