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Validity of Uniform Flow Hypothesis in One-Dimensional Morphodynamic Models
Publisher: American Society of Civil Engineers
Abstract: Local-uniform-flow (LUF) hypothesis is a simplification of the governing equations describing river morphodynamics, which is needed to determine the evolution of the bed profile and bed-material composition in the case of ...
Sand Transport over an Immobile Gravel Substrate
Publisher: American Society of Civil Engineers
Abstract: Experiments were conducted in a laboratory flume channel to evaluate the effects of increasing amounts of sand on its transport over and through an immobile coarse gravel bed. Detailed measurements of sand transport rate, ...
Stability Analysis of Semicohesive Streambanks with <i>CONCEPTS</i>: Coupling Field and Laboratory Investigations to Quantify the Onset of Fluvial Erosion and Mass Failure
Publisher: American Society of Civil Engineers
Abstract: The overarching goal of this study is to perform a comprehensive bank stability analysis that is phenomenologically sound by considering both mass failure and fluvial erosion. The nature of this study is twofold. First, ...
Seepage-Induced Streambank Erosion and Instability: In Situ Constant-Head Experiments
Publisher: American Society of Civil Engineers
Abstract: The effects of seepage on streambank erosion and failure are less understood compared to fluvial processes, especially the linkage between surface water and groundwater mechanisms. Field data are needed to validate laboratory ...
Spatially Distributed Sheet, Rill, and Ephemeral Gully Erosion
Publisher: American Society of Civil Engineers
Abstract: Ephemeral gully erosion seriously degrades agricultural soils, but few conservation planning tools adequately account for this form of erosion. To address this deficiency, this paper describes a spatially distributed ...