History of stepped channels and spillways: a rediscovery of the “wheel”
Copyright policy )History of stepped channels and spillways: a rediscovery of the “wheel”
Recently, spillways with a stepped profile have regained interest and favor among design engineers to pass flood waters over the dams. The stepped geometry enhances the energy dissipation above the spillway and reduces the size of a downstream stilling basin. In this paper, the author shows that the technique of stepped channels has been developed since Antiquity. Spillways and irrigation channels with stepped profiles were developed by several civilisations around the Mediterranean sea and in America. The main characteristics of the stepped spillways along the ages suggest a regular evolution rather than a revolution. Present stepped spillways are designed to pass similar discharges as 200 years ago. Key words: stepped channels, spillway, irrigation system, history, design techniques, energy dissipation.
- University of Queensland Australia
- University of Queensland Australia
291803 Turbulent Flows, energy dissipation, History, 670, 290000 Engineering and Technology, Stepped Channels, stepped spillways, design techniques, irrigation system, 260502 Surfacewater Hydrology, Spillway, Energy Dissipation, Flooding, etc.), Irrigation, stepped channels, Irrigation System, 291800 Interdisciplinary Engineering, 300105 Applied Hydrology (Drainage, Flooding, Irrigation, Quality, etc.), 291100 Environmental Engineering, Quality, 290802 Water and Sanitary Engineering, 290800 Civil Engineering, Design Techniques, 290899 Civil Engineering not elsewhere classified, 290804 Construction Engineering, 310102 Heritage and Conservation, history, 300105 Applied Hydrology (Drainage
291803 Turbulent Flows, energy dissipation, History, 670, 290000 Engineering and Technology, Stepped Channels, stepped spillways, design techniques, irrigation system, 260502 Surfacewater Hydrology, Spillway, Energy Dissipation, Flooding, etc.), Irrigation, stepped channels, Irrigation System, 291800 Interdisciplinary Engineering, 300105 Applied Hydrology (Drainage, Flooding, Irrigation, Quality, etc.), 291100 Environmental Engineering, Quality, 290802 Water and Sanitary Engineering, 290800 Civil Engineering, Design Techniques, 290899 Civil Engineering not elsewhere classified, 290804 Construction Engineering, 310102 Heritage and Conservation, history, 300105 Applied Hydrology (Drainage
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