Impulse Wave Overtopping at Rigid Dam Structures
Publication: Journal of Hydraulic Engineering
Volume 143, Issue 6
Abstract
Significant mass wasting into artificial or natural reservoirs generates so-called impulse waves, thereby transforming the potential energy of the sliding mass into kinetic wave energy. These waves run up onto shores and may overtop dams. The destruction of the shoreline due to run-up and the tailwater flooding due to dam overtopping are often devastating. This research deals with solitary waves to model the overtopping process in a two-dimensional (2D) laboratory-scale test setup. Three questions are answered: (1) How much water volume overtops? (2) What is the maximum overtopping depth at the dam crest? (3) How long is the overtopping duration? Dimensionless empirical relations between the governing parameters of still-water depth, relative wave amplitude, dam front face angle, dam crest width, and the previously mentioned variables are derived. Data including scale effects were eliminated. The present predictions are compared with an alternative model, thereby highlighting the major differences.
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Information & Authors
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Published In
Journal of Hydraulic Engineering
Volume 143 • Issue 6 • June 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jun 3, 2016
Accepted: Sep 8, 2016
Published ahead of print: Jan 25, 2017
Published online: Jan 26, 2017
Published in print: Jun 1, 2017
Discussion open until: Jun 26, 2017
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