Technical Advancements in Spillway Design / Progrès Techniques Dans La Conception Des Évacuateurs de Crues
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The purpose of this bulletin is to provide the dam engineering community with information on the technical characteristics of the various types of spillways that have been developed and implemented over the past four decades, as well as the hydraulic characteristics associated with these structures. Although spillways as such can be built with different types of structures and arrangements, the approach of this bulletin has been to retain some specific types of structures - step spillways, labyrinth spillways, PKW and tunnel spillways - and to analyze more conventional types of spillways…mehr

Produktbeschreibung
The purpose of this bulletin is to provide the dam engineering community with information on the technical characteristics of the various types of spillways that have been developed and implemented over the past four decades, as well as the hydraulic characteristics associated with these structures. Although spillways as such can be built with different types of structures and arrangements, the approach of this bulletin has been to retain some specific types of structures - step spillways, labyrinth spillways, PKW and tunnel spillways - and to analyze more conventional types of spillways operating under special conditions - very high flows, very high heads, very cold climates. In each chapter, the topics covered focus on the major issues related to the specific problems and structures considered, with the goal of providing information to the designer and owner to assist in the choices to be made during project development. Recent technological developments in the design, construction, and operation of spillways have focused primarily on economic and safety issues. Spillways are a key element of a dam project, providing the necessary protection of the project from the destructive effects of floods. This has led to the development of different approaches to selecting and defining the best type of spillway for each project. The purpose of this bulletin is to present and discuss the latest results of this evolution. L'objectif du bulletin du est de fournir à la communauté des ingénieurs des barrages une information sur les caractéristiques techniques des différents types d'évacuateurs de crue développés et implémentés durant les quatre dernières décennies, ainsi que des caractéristiques hydrauliques associées à ces structures. Bien que les évacuateurs de crue, en tant que tels, peuvent être construits avec différents types de structures et de dispositions, l'approche de ce bulletin a été de retenir certains types spécifiques de structures - évacuateurs de crue à marche d'escalier, labyrinthes, PKW et évacuateurs de crue en tunnel, et d'analyser des types plus conventionnels d'évacuateurs de crue opérant dans des conditions spéciales - très grands débits, très haute chute, climat très froid. Dans chaque chapitre, les sujets traités se concentrent sur les principales questions concernant les problématiques et structures spécifiques considérées, dans l'objectif de fournir des informations au concepteur du projet et au propriétaire, pour aider aux choix à opérer dans le cadre du développement du projet. La récente évolution des technologies en lien avec la conception, la construction et l'exploitation des évacuateurs de crue, s'est concentrée essentiellement sur les sujets économiques et de sécurité. Les évacuateurs de crue sont un élément clé d'un projet de barrage, pour assurer la protection nécessaire du projet vis-à-vis de l'action destructrice des crues. Ceci a mené au développement de différentes approches pour sélectionner et définir le meilleur type d'évacuateur pour chaque projet. Ce bulletin vise à présenter et discuter les résultats les plus récents de cette évolution.
Autorenporträt
The Commission Internationale des Grands Barrages (CIGB) / International Commission on Large Dams (ICOLD) is a non-governmental International Organization which provides a forum for the exchange of knowledge and experience in dam engineering. The Organization leads the profession in ensuring that dams are built safely, efficiently, economically, and without detrimental effects on the environment. Its original aim was to encourage advances in the planning, design, construction, operation, and maintenance of large dams and their associated civil works, by collecting and disseminating relevant information and by studying related technical questions. Since the late sixties, focus was put on subjects of current concern such as dam safety, monitoring of performance, reanalysis of older dams and spillways, effects of ageing and environmental impact. More recently, new subjects include cost studies at the planning and construction stages, harnessing international rivers, information for the public at large, and financing.