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Federal Emergency Management Agency
Industry: Government
Number of terms: 10940
Number of blossaries: 0
Company Profile:
An instrument designed to measure axial displacement of a fixed point or points along its length. Extensometers can be a rod-type, or a wire-type and are usually grouted into an uncased borehole. They can be installed horizontally, vertically, or at any angle.
Industry:Energy
The condition of a structure or a mass of material when it is able to support the applied stress for a long time without suffering any significant deformation or movement that is not reversed by the release of the stress.
Industry:Energy
A concrete gravity dam constructed by the use of a dry mix concrete transported by conventional construction equipment and compacted by rolling, usually with vibratory rollers.
Industry:Energy
A gate controlling the flow of water through a reservoir outlet.
Industry:Energy
The process of deciding whether existing risks are tolerable and present risk control measures are adequate and, if not, whether alternative risk control measures are justified. Risk assessment incorporates the risk analysis and risk evaluation phases.
Industry:Energy
A gate with a curved upstream plate and radial arms hinged to piers or other supporting structure.
Industry:Energy
Potential loss of life or property damage downstream of a dam caused by floodwaters released at the dam or by waters released by partial or complete failure of dam. Also effects of landslides upstream of the dam on property located around the reservoir.
Industry:Energy
An embedded instrument that uses electrical principles to measure movement across a joint or crack. These can be Carlson type and vibrating-wire.
Industry:Energy
An embankment dam in which more than 50% of the total volume is comprised of compacted or dumped cobbles, boulders, rock fragments, or quarried rock generally larger than 3-inch size.
Industry:Energy
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 until the controlled retention water level is reached.
Industry:Energy