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Introductory technical guidance for civil engineers interested in hydraulic design of spillways at dams and other water resources facilities. Here is what is discussed: 1. INTRODUCTION 2. BASIC CONSIDERATIONS 3. GENERAL CONSIDERATIONS FOR SPILLWAY DISCHARGE 4. ABUTMENT AND PIERS 5. EFFECT OF APPROACH FLOW 6. GRADIENTS IN GENERAL 7. HYDRAULIC AND ENERGY GRADIENT LINES 8. MEAN SPILLWAY PRESSURE COMPUTATION 9. SPILLWAY ENERGY LOSS 10. ENERGY LOSS FOR FULLY DEVELOPED TURBULENT BOUNDARY LAYER FLOW 11. TURBULENT BOUNDARY LAYER DEVELOPMENT ENERGY LOSS 12. HYDRAULIC JUMP ENERGY DISSIPATORS 13. CAVITATION.
An unsurpassed treatise on the state-of-the-science in the research and design of spillways and energy dissipators, Hydraulics of Spillways and Energy Dissipators compiles a vast amount of information and advancements from recent conferences and congresses devoted to the subject. It highlights developments in theory and practice and emphasizing top
This publication provides introductory technical guidance for civil engineers interested in hydraulic design of spillways at dams. Here is what is discussed: 1. INTRODUCTION, 2. BASIC CONSIDERATIONS, 3. GENERAL CONSIDERATIONS FOR SPILLWAY DISCHARGE, 4. ABUTMENT AND PIERS, 5. EFFECT OF APPROACH FLOW, 6. GRADIENTS IN GENERAL, 7. HYDRAULIC AND ENERGY GRADIENT LINES, 8. MEAN SPILLWAY PRESSURE COMPUTATION, 9. SPILLWAY ENERGY LOSS, 10. ENERGY LOSS FOR FULLY DEVELOPED TURBULENT BOUNDARY LAYER FLOW, 11. TURBULENT BOUNDARY LAYER DEVELOPMENT ENERGY LOSS, 12. HYDRAULIC JUMP ENERGY DISSIPATORS, 13. CAVITATION.
U.S. Army Corps of Engineers Technical Engineering and Design Guide No. 12 presents guidance for the hydraulic design of spillways for flood control or multipurpose dams.
This manual presents guidance for the hydraulic design of spillways for flood control or multipurpose dams. Procedures recommended are considered appropriate for structures suitable to most of the field conditions encountered in most projects. The basic theory is presented as required to clarify presentation and where the state of the art is limited to textbooks. Both laboratory and prototype experimental test results have been correlated with current theory in the design guidance where possible. One parameter of spillway design is the largest flood it is designed to handle. The structures must safely withstand the appropriatespillway design flood (SDF). The magnitude of the flood is sometimes expressed as a return period. A 100-year recurrence interval is the flood magnitude expected to be exceeded on the average of once in 100 years. This parameter may also be expressed as an exceedance frequency with a one percent chance of being exceeded in any given year. The volume of water expected during the design flood is obtained by hydrologic calculations of the upstream watershed. The return period is set by dam safety guidelines, based on the size of the structure and the potential loss of human life or property downstream.
Most dam accidents with hydroelectric plants are due to under-dimensioning of the maximum floods of spillway design, causing extravasation and dam breaks (this occurs in 23% of the accidents). This work highlights the relationship between spillway design and potential dam failure and other important aspects of these structures and presents the methodology of design based on the international experience on the subject. The book covers river basin studies and floods (the geology, geomorphology, hydrology, hydraulics, and layouts of the works). Further, spillway function, capacity and design flood, layouts, or arrangements, of hydroelectric works and types of spillways are treated in the book. Finally, the book discusses examples of dams that broke due to insufficient spillway capacity. The book is intended for engineers and the companies that design dams and power plants around the world, as well as students in dam and hydraulic engineering. In short, people interested in producing electricity that is clean and potentially cheaper than other sources.
This manual provides guidance for the hydraulic design of spillways for flood control or multipurpose dams. Procedures recommended are considered appropriate for structures suitable to most of the field conditions encountered in Corps of Engineer projects. Basic theory is presented as required to clarify presentation and where the state of the art, as found in standard textbooks, is limited. Both laboratory and prototype experimental test results have been correlated with current theory in the design guidance where possible.