Abstract
An analytical solution is proposed for debris flows which can be modeled as Bingham fluids. A 2-D unsteady nonuniform debris flow originated from a source of constant-volume (e.g. landslide problem) on a steep slope is considered. Using boundary-layer approximations, von Karman's integral momentum and continuity equations are scaled to assess the relative magnitude of each term. The method of matched asymptotic expansions is then implemented to get first-order solutions for the outer and inner regions. The analytical solution agrees well with experimental laboratory results obtained by previous investigators. Debris flows on initially wet slopes are also analyzed in the same way and show interesting features.
| Original language | English (US) |
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| Pages | 561-575 |
| Number of pages | 15 |
| State | Published - 1997 |
| Event | Proceedings of the 1997 1st International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment - San Francisco, CA, USA Duration: Aug 7 1997 → Aug 9 1997 |
Other
| Other | Proceedings of the 1997 1st International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment |
|---|---|
| City | San Francisco, CA, USA |
| Period | 8/7/97 → 8/9/97 |
ASJC Scopus subject areas
- Water Science and Technology
- Geotechnical Engineering and Engineering Geology
- Earth-Surface Processes