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Dam safety

Contributors in Dam safety

Dam safety

upstream blanket

Energy; Hydro dam

An impervious blanket placed on the reservoir floor and abutments upstream of a dam. For an embankment dam, the blanket may be connected to the core.

surcharge

Energy; Hydro dam

The volume or space in a reservoir between the controlled retention water level and the maximum water level. Flood surcharge cannot be retained in the reservoir but will flow out of the reservoir ...

instrumentation

Energy; Hydro dam

An arrangement of devices installed into or near dams that provide for measurements that can be used to evaluate the structural behavior and performance parameters of the structure.

pervious zone

Energy; Hydro dam

A part of the cross section of an embankment dam comprising material of high permeability.

service spillway

Energy; Hydro dam

A spillway that is designed to provide continuous or frequent regulated or unregulated releases from a reservoir, without significant damage to either the dam or its appurtenant structures. This is ...

arch dam

Energy; Hydro dam

A concrete, masonry, or timber dam with the alignment curved upstream so as to transmit the major part of the water load to the abutments.

headwater

Energy; Hydro dam

The water immediately upstream from a dam. The water surface elevation varies due to fluctuations in inflow and the amount of water passed through the dam.

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