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Gravel accumulation in deposits of viscous debris flows with hyper-concentration

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Abstract

According to the observational data of viscous debris flows with hyper-concentration, debris flows can be classified into three types: high-viscous, viscous, and sub-viscous debris flows. Distinct formation mechanism of different graded bedding structures in deposits of viscous debris flows was analyzed in this paper by using their yield-stress ratio and flow plug ratio. This paper specially analyzed the effect of Weissenberg which the gravels in squirm condition of hyper-concentration viscous flows would tend to move vertically, and the formation mechanism of the gravels accumulated at surface was also studied. The analysis in this paper can establish a foundation for the studies on differentiation of bedding structures of debris flow deposits and studies on dynamic parameters of debris flows.

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Authors and Affiliations

  1. Key Laboratory of Mountain Hazards & Earth Surface Process, Chinese Academy of Sciences, Beijing, China

    Yuyi Wang, Rongzhi Tan & Bing Tian

  2. Institute of Mountain Hazards & Environment, Chinese Academy of Sciences, Chengdu, 610041, China

    Yuyi Wang, Rongzhi Tan & Bing Tian

  3. Department of Hydraulics & Ocean Engineering, ChengKung University, Tainan, 70101, Taiwan, China

    Chyandeng Jan

  4. College of Resources & Environment Science, Hebei Normal University, Shijiazhuang, 050016, China

    Bing Tian

Authors
  1. Yuyi Wang
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  2. Rongzhi Tan
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  3. Chyandeng Jan
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  4. Bing Tian
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Correspondence to Yuyi Wang.

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Wang, Y., Tan, R., Jan, C. et al. Gravel accumulation in deposits of viscous debris flows with hyper-concentration. J. Mt. Sci. 6, 88–95 (2009). https://doi.org/10.1007/s11629-009-0120-9

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  • DOI: https://doi.org/10.1007/s11629-009-0120-9

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