Fig. 1. Schematic design for numerical experiment of debris flow
Fig. 2. Sediment concentration at the downstream end varying the sediment supply for channel for θ=16° and q=600 cm3/sec
Fig. 3. Sediment concentration at the downstream end varying the sediment supply for channel for θ=16° and q=600 cm3/sec
Fig. 4. Sediment concentration at the downstream end varying the sediment supply for channel for θ=16° and q=1,000 cm3/sec
Fig. 5. Sediment concentration at the downstream end varying the sediment supply for channel for θ=20° and q=1,000 cm3/sec
Fig. 6. Sediment concentration on the channel varying water supply with fine sediment fraction for θ=14°
Fig. 7. The height of erosion and sedimentation on the channel varying water supply for θ=20°
참고문헌
- Armanini, A., Fraccarollo, L. and Rosatti, G. (2009), Two-dimensional simulation of debris flows in erodible channels, Computers & Geosciences, Vol. 35, pp. 993-1006. https://doi.org/10.1016/j.cageo.2007.11.008
- Bagnold, R. A. (1954), Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear. Proc. R.S. London, Ser. A225, 49-63.
- Blair, T. C. and McPherson, J. G. (1994), Alluvial fan processes and forms, in Abrahams, A. D., and Parsons, A. J., eds., Geomorphology of desert environments, London, Chapman and Hall, pp. 354-402.
- Choi, J. H. and Jun, K. W. (2015), Analysis experiment of reduction effect of trees miniature model on debris flow-focusing on the study on making of trees miniature model-, Journal of Korean Society of Environmental Technology, Vol. 16, No. 22, pp. 177-185 (In Korean).
- DeGraff, J. (1994), The geomorphology of some debris flows in the Southern Sierra Nevada, California, Geomorphology, Vol. 10, pp. 231-252. https://doi.org/10.1016/0169-555X(94)90019-1
- Egashira, S., Miyamoto, K. and Itoh, T. (1997), Constitutive equation of debris flow and their applicability, 1st International Conference on Debris-Flow Hazards Mitigation, ASCE, pp. 340-349.
- Gori, P. L. and Burton, W. C. (1996), Debris flow hazards in the Blue Ridge of Virginia, U.S. Geological Survey Fact Sheet, pp. 159-96.
- Kim, C. K., Bak, G. J., Kim, J. C., Song, S. Y. and Yun, J. M. (2013), Prediction of slope hazard probability around express way using decision tree model, Journal of Korean Geosynthetics Society, Vo. 12, No. 2, pp. 67-74 (In Korean). https://doi.org/10.12814/jkgss.2013.12.2.067
- Kim, S. D. and Lee, H. J. (2015), Assessment of risk due to debris flow and its application to a marine environment, Marine Georesources and Geotechnology, Vol. 33, No. 6, 572-578. https://doi.org/10.1080/1064119X.2014.954181
- Kim, S. D., Lee, H. S., Jun, B. H. and Jun, K. W. (2016), The analysis of liquefied-layer of debris flow on the various slope of parallel steep under the environmental soil condition, Journal of Korean Society of Environmental Technology, Vol. 17, No. 3, pp. 266-274 (In Korean).
- Kim, S. D., Yoon, I. R., Oh, S. W., Lee, H. J. and Bae, W. S. (2012), Numerical simulation for behavior of eebris flow according to the variances of slope angle, Journal of the Korean Geo-Environmental Society, Vol. 13, No. 6, pp. 59-66 (In Korean).
- Nakagawa, H., Satofuka, Y. and Takahama, J. (2002), Water induced hazard-.I, Sub Text Book, M. Sc. in Water Resources Engineering, Institute of Engineering, Nepal, pp. 1-40.
- Schwab, W. C., Lee, H. J., Twichell, D. C., Locat, J., Nelson, C. H., McArthur, W. G. and Kenyon, N. H. (1996), Sediment mass-flow processes on a depositional lobe, Outer Mississippi Fan, Journal of Sedimentary Research, Vol. 66, pp. 916-927.
- Takahashi, T., Nakagawa, H., Harada, T. and Yamashiki, Y. (1992), Routing debris flows with particle segregation, Journal of Hydraulic Engineering, Vol. 118, No. 11, pp. 1490-1507. https://doi.org/10.1061/(ASCE)0733-9429(1992)118:11(1490)