Underwater work as a means for the rehabilitation of large hydraulic structures under full operation and unrestricted water supply
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Published:2002
C Heuefuss, H J Kny, 2002. "Underwater work as a means for the rehabilitation of large hydraulic structures under full operation and unrestricted water supply", Reservoirs in a Changing World: Proceedings of the 12th conference of the BDS held at TRINITY COLLEGE, DUBLIN 4 – 8 September 2002, Paul Tedd
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The layout of many hydraulic structures built during the beginning of the 20th century did not make provisions for emergency gates, because the complete draw down of the reservoirs for repair purposes was considered possible. However, a complete draw down would restrict the water supply and cause severe ecological problems as well. Therefore rehabilitation works had to be done at reservoir levels which allowed an unrestricted water supply. That required underwater work at the intake structures and the use of emergency gates for safe working conditions. Extensive underwater work has been done in order to adapt the existing hydraulic structures to new operational needs.
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