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- Title
Discharge evolution law of debris flow based on a sharp bend physical modeling test.
- Authors
Lu, Ming; Sun, Hao; Liu, Jinfeng; Hussain, Abrar; Shang, Yuqi; Fu, Hang
- Abstract
For the basins with debris flow development, its channel terrain exhibits a tortuous shape, which significantly restricts the movement of debris flows and leads to severe erosion effects on the concave bank. Therefore, this study aims to analyze the shear force of debris flows within the bend channel. We established the relationship between the shear force and bend curvature through laboratory experiments. Under the long-term erosion by debris flows, the curvature radius of bends gradually increases, however, when this increasing trend reaches an equilibrium state with the intensity of debris flow discharge, there will be no significant change in curvature radius. In general, the activity pattern and discharges of debris flows would remain relatively stable. Hence, we can infer the magnitude of debris flow discharges from the terrain parameters of the bend channel.
- Subjects
DEBRIS avalanches; SHEARING force; EROSION
- Publication
Journal of Mountain Science, 2024, Vol 21, Issue 6, p1904
- ISSN
1672-6316
- Publication type
Article
- DOI
10.1007/s11629-023-8434-6