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Mechanics and the existence criteria of various types of flows during massive sediment transport

  • Sediment Movement In Mountain Streams: Erosion-Deposition Models Deposition In Reservoirs Ordinary And Catastrophic Events; Debris Flow Sediment Control Devices
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Fluvial Hydraulics of Mountain Regions

Part of the book series: Lecture Notes in Earth Sciences ((LNEARTH,volume 37))

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Abstract

Massive sediment transport in which solid fraction and water are altogether drived by gravity as virtually a continuum appears in several aspects depending on the channel condition, discharge and the properties of solid and fluid. In this paper, first the characteristics of the macro-viscous flow are discussed and a formula to estimate viscosity in highly sediment laden flow is given. The modified Bagnold's number to divide the flow ranges into macro-viscous and inertial is introduced.

Then, the flow formulae in inertial range corresponding to the stony debris flow, turbulent mud flow, immature debris flow and a hybrid of stony and muddy debris flow are presented focusing on the characteristics of the velocity profile and the extent of solid particle dispersion in the flow.

Finally, the existence domains of those various type flows in inertial range are given on a plane whose two orthogonal axes represents slope and relative depth respectively.

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References

  • Bagnold, R.A. (1954), Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear, Proc. Roy. Soc. London, A, Vol.225, pp.49–63.

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  • Bagnold, R.A. (1962), Auto-suspension of transported sediment; turbidity currents, Proc. Roy. Soc. London, A, No.1322, pp.315–319.

    Google Scholar 

  • Johnson, A.M. (1970), Physical processes in geology, Freeman, Cooper, San Francisco, Calif.

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  • Rubey, W.W. (1933), Settling velocities of gravels, sand and silt particles, Am. Jour. of Science, Vol.25, pp.325–338.

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  • Takahashi, T. (1978), Mechanical characteristics of debris flow, Jour. Hydraulics Div., ASCE, Vol.104, No.8, pp.1153–1169.

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  • Takahashi, T. and Fujii, Y. (1988), Debris flow control once under way, Annuals, Disaster Prevention Research Institute, Kyoto Univ., No.31B-2, pp.633–654(in Japanese).

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Authors and Affiliations

  1. Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan

    Tamotsu Takahashi

Authors
  1. Tamotsu Takahashi
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Aronne Armanini Giampaolo Di Silvio

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© 1991 Springer-Verlag

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Takahashi, T. (1991). Mechanics and the existence criteria of various types of flows during massive sediment transport. In: Armanini, A., Di Silvio, G. (eds) Fluvial Hydraulics of Mountain Regions. Lecture Notes in Earth Sciences, vol 37. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0011196

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  • DOI: https://doi.org/10.1007/BFb0011196

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-54491-3

  • Online ISBN: 978-3-540-38410-6

  • eBook Packages: Springer Book Archive

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