| Abstract: | Steady debris flows with or without a snout are simulated in a ‘conveyor-belt‘ flume using dry glass spheres of a uniform size, 5 or 14 mm in diameter, and their rheological properties described quantitatively in constants in a generalized viscoplastic fluid (GVF) model. Close agreement of the measured velocity profiles with the theoretical ones obtained from the GVF model strongly supports the validity of a GVF model based on the continuum-mechanics approach. Further comparisons of the measured and theoretical velocity profiles along with empirical relations among the shear stress, the normal stress, and the shear rate developed from the ‘ring-shear‘ apparatus determine the values of the rheological parameters in the GVF model, namely the flow-behavior index, the consistency index, and the cross-consistency index. Critical issues in the evaluation of such rheological parameters using the conveyor-belt flume and the ring-shear apparatus are thus addressed in this study. |
| Genre: | Conference Paper |
| ProdID: | 70016379 |
| Citation Author: | Ling, Chi-Hai; Chen, Cheng-lung; Jan, Chyan-Deng |
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| Citation Editor: | French Richard H. |
| Citation End Page: | 224 |
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| Citation Language: | English |
| Citation Larger Work Title: | Hydraulics/Hydrology of Arid Lands |
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| Citation Number Of Pages: | 7 |
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| Citation Publisher: | Publ by ASCE |
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| Citation Search Results Text: | Rheological properties of simulated debris flows in the laboratory environment; 1990; Conference Paper; Hydraulics/Hydrology of Arid Lands; Ling, Chi-Hai; Chen, Cheng-lung; Jan, Chyan-Deng |
| Citation Start Page: | 218 |
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| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Rheological properties of simulated debris flows in the laboratory environment; 1990; Conference Paper; Hydraulics/Hydrology of Arid Lands; Ling, Chi-Hai; Chen, Cheng-lung; Jan, Chyan-Deng |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
| Publisher: | Publ by ASCE |
