Publications

World Register of Dams / Registre Mondial des Barrages

World Register of Dams / Registre Mondial des Barrages

Achat d'un accès de 3ans pour le Registre Mondial des Barrages (RMB).

 

Le RMB est la meilleure base de données répertoriant des barrages dans le monde et nous travaillons constamment à son amélioration

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151

Bulletin 151

Sols résiduels tropicaux utilisés pour la fondation de barrages et comme matériau de remblai
154

Bulletin 154

Gestion de la sécurité des barrages en exploitation
164

Bulletin 164

L’érosion interne dans les digues, barrages existants et leurs fondations
Package Bulletins 2016

Package Bulletins 2016

Pack des 4 derniers bulletins de 2016
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168

Bulletin 168

Recommendations pour l'exploitation, la maintenance et la réhabilitation des barrages
Preprint - 172

Bulletin Preprint - 172

Technical Advancements in Spillway Design - Progress and Innovations from 1985 to 2015

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Bulletin

Integrated Operation of Hydropower Stations and Reservoirs

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Bulletin

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Registre des barrages

La meilleure base de données mondiale sur les barrages, établie à partir des inventaires nationaux envoyés par les pays membres à la CIGB. Le Registre est mis à jour continuellement et comporte actuellement plus de 55 000 Barrages.

 

Événements

ICOLD_Event

26ème Congrès & 86ème Réunion Annuelle de la CIGB

Vienne, Autriche

1 - 7 Juillet 2018

 

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Technology of Dams

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Gravity_Dam

Technology of dams


There are now three types of hydroelectric installations: storage, run-of-river, and pumped-storage facilities. Storage facilities use a dam to capture water in a reservoir, created by a dam. This stored water is released from the reservoir through turbines at the rate required to meet changing electricity needs or other needs such as flood control, fish passage, irrigation, navigation, and recreation.


What kind of technologies are available? There are different possibilities to classify them, the first one being to use the material used to construct the dam. Dams built of concrete, stone, or other masonry are called gravity dams, arch dams or buttress dams. Dams built of earth or rocks are called embankment dams.

 

Arch_dam_icold

 

Embankment dams are constructed of either earth fill or a combination of earth and rock fill. Therefore, embankment dams are generally built in areas where large amount of earth or rocks are available. They represent 75% of all dams in the world.

 

Gravity dams depend entirely on their own weight to resist the tremendous force of stored water. In the earlier times, some dams have been constructed with masonry blocks and concrete. Today, gravity dams are constructed by mass concrete or roller compacted concrete.

 

Arch dams are concrete dams that curve upstream toward the flow of water. They are generally built in narrow canyons, where the arch can transfer the water’s force to the canyon wall. Arch dams require much less concrete than gravity dams of the same length, but they require a solid rock foundation to support their weight.

 

Buttress dams depend for support on a series of vertical supports called buttresses, which run along the downstream face.

Embankment_Dam

 

 
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