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Blockage of Reservoir Outlet Structures by Floating Debris / Blocage des Evacuateurs de Crue, Prises d'Eau et Vidanges de Fond par les Corps Flottants: ICOLD Bulletins Series

Editat de ICOLD CIGB
en Limba Engleză Paperback – 22 ian 2025
The production of this Bulletin is a joint effort by the Committees on Hydraulics for Dams and on Dams and Floods to pool resources in producing an overview of the state of the art, latest research and industry developments relating to the subject of blockage of spillways, intakes and bottom outlets by floating debris.  The topic is of common interest to both committees as the risks involved can be significant, potentially leading to partial or complete loss of hydraulic functionality or even to dam failure with far reaching public safety and economic consequences. A number of previous bulletins have addressed some of these issues in a range of different ways as outlined in the following paragraphs but none of them was specifically dedicated to this rather complex subject. This Bulletin therefore aims to fill this gap by further improving the awareness of the impact of blockage by floating debris on the economy and safety of reservoir projects and by providing practical guidance on the evaluation and management of the risk of blockage. In particular, it updates the topic by dealing in further detail with the relevant processes within the catchment, in the river basin and through the reservoir, while discussing the various methods and best practice techniques for floating debris characterisation and measures for blockage mitigation. In addition, the Bulletin discusses the uncertainties and residual risks associated with the current practices of dealing with floating debris and highlights areas where further research and development would be required.
 
La production de ce Bulletin est un effort conjoint des Comités sur l'Hydraulique des Barrages et sur les Barrages et les Inondations pour mettre en commun les ressources afin de produire une vue d'ensemble de l'état de l'art, des dernières recherches et des développements industriels relatifs au sujet du blocage des évacuateurs de crue, des prises d'eau et des vidanges de fond par des débris flottants. Le sujet est d'intérêt commun pour les deux comités car les risques encourus peuvent être significatifs, menant potentiellement à une perte partielle ou complète de la fonctionnalité hydraulique ou même à la rupture du barrage avec des conséquences économiques et de sûreté publique majeures. Un certain nombre de bulletins précédents ont abordé quelques-unes de ces questions de différentes manières, comme indiqué dans les paragraphes suivants, mais aucun d'entre eux n'était spécifiquement consacré à ce sujet plutôt complexe. Le présent bulletin vise donc à combler cette lacune en améliorant la conscience de l'impact du blocage par des débris flottants sur l'économie et la sûreté des projets de réservoirs et en fournissant des conseils pratiques sur l'évaluation et la gestion du risque de blocage. En particulier, il met à jour le sujet en traitant plus en détail les processus pertinents dans le bassin versant, dans le lit des cours d’eau et à travers le réservoir, tout en discutant les différentes méthodes et techniques pour mieux caractériser les débris flottants et les mesures d'atténuation de leurs effets négatifs. En outre, le Bulletin aborde les incertitudes et les risques résiduels associés aux pratiques actuelles de traitement des débris flottants et met en évidence les domaines dans lesquels des recherches et des développements supplémentaires seraient nécessaires.
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Specificații

ISBN-13: 9781032871486
ISBN-10: 1032871482
Pagini: 148
Dimensiuni: 156 x 234 mm
Ediția:1
Editura: CRC Press
Colecția CRC Press
Seria ICOLD Bulletins Series


Public țintă

Academic, Postgraduate, Professional Practice & Development, and Professional Reference

Cuprins

1. INTRODUCTION2. FLOATING DEBRIS CHARACTERISATION3. IMPACTS OF FLOATING DEBRIS4. MITIGATING IMPACTS OF FLOATING DEBRIS5. EVALUATION AND MANAGEMENT OF THE RISK OF BLOCKAGE 1. INTRODUCTION2. CARACTERISATION DES DEBRIS FLOTTANTS3. IMPACTS DES DEBRIS FLOTTANTS4. ATTENUATIONS DES IMPACTS DES CORPS FLOTTANTS5. ÉVALUATION ET GESTION DU RISQUE DE BLOCAGE

Notă biografică

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.

Descriere

The production of this Bulletin is a joint effort by the Committees on Hydraulics for Dams and on Dams and Floods to pool resources in producing an overview of the state of the art, latest research and industry developments relating to the subject of blockage of spillways, intakes and bottom outlets by floating debris.