The Zambezi River Authority is currently reshaping the plunge pool downstream of Kariba Dam. Since its construction in the later 1950's / early 1960's discharges through the spillway resulted in a plunge pool scoured out of excellent quality gneiss, 90m deep. By reshaping the plunge pool the intent is to better manage energy dissipation, arrest scour and improve dam safety. Razel-Bec, contractor for executing the works, produced this video. Engineering design was executed by Coyne et Bellier (now part of Tractebel Engineering), with supervision the responsibility of Stucky. Razel-Bec developed an innovative way to construct the cofferdam downstream of the dam by floating in concrete piers constructed in the day, which is demonstrated in this video.
23 янв 2021
