- Industry: Government
- Number of terms: 10940
- Number of blossaries: 0
- Company Profile:
A standby or reserve gate used only when the normal means of water control is not available for use.
Industry:Energy
One or more layers of granular material graded (either naturally or by selection) so as to allow seepage through or within the layers while preventing the migration of material from adjacent zones.
Industry:Energy
Vertical height above the stillwater level to which water from a specific wave will run up the face of a structure or embankment.
Industry:Energy
A potential failure mode is a physically plausible process for dam failure resulting from an existing inadequacy or defect related to a natural foundation condition, the dam or appurtenant structures design, the construction, the materials incorporated, the operations and maintenance, or aging process, which can lead to an uncontrolled release of the reservoir.
Industry:Energy
The interface between two successive placements or pours of concrete where bond, and not permanent separation, is intended.
Industry:Energy
A dam constructed of concrete and/or masonry on the outside but having a hollow interior and relying on its weight for stability.
Industry:Energy
An overflow structure on which the nappe is supported for an appreciable length in the direction of flow.
Industry:Energy
A steel rod or cable placed in a hole drilled in rock, held in position by grout, mechanical means, or both. In principle, the same as a rock bolt, but usually the rock anchor is more than 4 meters long.
Industry:Energy
A layer of large uncoursed stone, precast blocks, bags of cement, or other suitable material, generally placed on the slope of an embankment or along a watercourse as protection against wave action, erosion, or scour. Riprap is usually placed by dumping or other mechanical methods, and in some cases is hand placed. It consists of pieces of relatively large size, as distinguished from a gravel blanket.
Industry:Energy
A decrease in amplitude of the seismic waves with distance due to geometric spreading, energy absorption, and scattering, or decrease in the amplitude of a flood wave due to channel geometry and energy loss.
Industry:Energy
