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.
Original language | English |
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Pages (from-to) | 88-95 |
Number of pages | 8 |
Journal | Journal of Mountain Science |
Volume | 6 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2009 Mar 6 |
All Science Journal Classification (ASJC) codes
- Global and Planetary Change
- Geography, Planning and Development
- Geology
- Earth-Surface Processes
- Nature and Landscape Conservation