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

Yuyi Wang, Rongzhi Tan, Chyandeng Jan, Bing Tian

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)88-95
Number of pages8
JournalJournal of Mountain Science
Issue number1
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Global and Planetary Change
  • Geography, Planning and Development
  • Geology
  • Earth-Surface Processes
  • Nature and Landscape Conservation


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