Journal article
パイプ流存在下での斜面の安定性に関する 数値実験 [Numerical experiments to assess the influence of pipeflow on slope stability]
Proceedings of Hydraulic Engineering, Vol.48, pp.337-342
2004
Abstract
Pipeflow is recognized as an important hydrologic control as well as a landslide initiation factor, and the development of a theoretical method to analyze pipeflow process is needed. However, there are few modeling studies of pipeflow, and a general simulation technique for water dynamics in the hillslope scale with soil pipes has not yet been developed. In this study, a general model that describes lateral pipeflow in a hillslope was developed. In the model, matrix flow and pipeflow were calculated by their respective governing equations (Richards' equation and Manning's equation), considering the interaction between t hese two flow systems. Numerical experiments were conducted to analyze the effect of pipeflowon slope stability. Results indicated that pipe clogging decreases the factor of safety and couldbe a factor that triggers landslides, and that pipeflow affects the initiation of debris flow after landslides.
Details
- Title
- パイプ流存在下での斜面の安定性に関する 数値実験 [Numerical experiments to assess the influence of pipeflow on slope stability]
- Authors
- Daizo Tsutsumi (Author)Roy C Sidle (Author)Masaharu Fujita (Author)Takahisa Mizuyama (Author)
- Publication details
- Proceedings of Hydraulic Engineering, Vol.48, pp.337-342
- Publisher
- Doboku Gakkai
- Date published
- 2004
- DOI
- 10.2208/prohe.48.337
- ISSN
- 0916-7374
- Organisation Unit
- University of the Sunshine Coast, Queensland; Sustainability Research Cluster
- Language
- English; Japanese
- Record Identifier
- 99450601002621
- Output Type
- Journal article
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