13 Terms
Contributors in Dam safety
Dam safety
earthquake, operating basis (OBE)
Energy; Hydro dam
The earthquakes for which the structure is designed to resist and remain operational. It reflects the level of earthquake protection desired for operational or economic reasons and may be determined ...
regulating sleeve valve
Energy; Hydro dam
A valve for regulating high pressure outlets and ensuring energy dissipation. Inside the valve there is a fixed-cone, pointed upstream, which ensures dispersion of the jet. Outside the valve, a ...
fixed wheel gate
Energy; Hydro dam
A gate having wheels or rollers mounted on the end posts of the gate. The wheels bear against rails fixed in side grooves or gate guides.
seismotectonic province
Energy; Hydro dam
A geologic area characterized by similarity of geologic structure and tectonic and seismic history.
duration of strong ground motion
Energy; Hydro dam
The "bracketed duration" or the time interval between the first and last acceleration peaks that are equal to or greater than 0. 05g.
