INCREASING THE OPERATING SAFETY OF THE IZVORU
MUNTELUI DAM THROUGH THE HYDRO-MECHANICAL
EQUIPMENT MODERNIZATION OF THE BOTTOM OUTLETS
Bottom outlets are considered to be the most important hydraulic
structures in dams. They have an essential role in filling and emptying the
reservoir thus preventing flood risks, maintaining the safety operation, removing
sediments and allowing rehabilitation works. This paper presents the solutions
for increasing the operating safety of the Izvoru Muntelui dam through the
hydro-mechanical equipment modernization of the bottom outlets starting from
the operational issues that occurred over time. The solutions mainly aim to
eliminate the vibrations during the valves operation and to identify ways that will
allow the service and the maintenance of the bottom outlet valves. Fitting a
valve downstream, at the end of the bottom outlet will increase the safety
degree, allowing the operation of the existing valves in balanced pressure
conditions, thus avoiding undesired vibrations.
Keywords: bottom outlet, jaw valve, Venturi tube, cofferdam
Cuvinte cheie: golire de fund, vană cu fălci, tub Venturi, batardou
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