Gravel Accumulation in Deposits of Viscous Debris Flows with Hyper-concentration

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 anal...

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Bibliographic Details
Published in:Journal of mountain science 2009-03, Vol.6 (1), p.88-95
Main Authors: Wang, Yuyi, Tan, Rongzhi, Jan, Chyandeng, Tian, Bing
Format: Article
Language:English
Subjects:
Debris flow
Detritus
Earth and Environmental Science
Earth Sciences
Ecology
Environment
Geography
Geology
Gravel
Mountains
Sand & gravel
Studies
粘性泥石流
粘性流动
观测数据
超线程
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Summary: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.
ISSN:1672-6316
1993-0321
1008-2786
DOI:10.1007/s11629-009-0120-9