Roller compacted concrete in dam construction, part III: Design

Abstract

After the chronological review of the RCC dams development, and the analysis of the RCC components in the previous articles of this serial, this paper presents the most important issues of the gravity RCC dams design. In the beginning, the principles of the design are described; the cross-section shape and the stability issues are discussed. Follows the detailed description of the design procedure, including the seismic and thermal analysis. Joints, water stops, galleries and percolation control are considered next. Finally, foundation features, spillways and monitoring of the RCC dams are described. In such a way, the most important characteristics of the RCC dams are emphasized, as well as the similarities and differences in comparison to the gravity dams of conventional concrete, which has to be bared in mind during the design procedure.

Posle prikaza istorijskog razvoja RCC brana i analize komponenata i osobina valjanog betona (koji su dati u prethodnim člancima), u ovom radu su obrađena najvažnija pitanja u vezi sa projektovanjem gravitacionih brana od valjanog betona. Na početku su analizirani principi projektovanja, oblik poprečnog preseka i opšta stabilnost. Sledi opis dimenzionisanja, uticaji seizmike i termička analiza. Razmatranjem razdelnica, zaptivki, galerija i kontrole procurivanja dat je osvrt na najvažnije elemente upotrebljivosti. Na kraju su opisane specifičnosti temeljenja, evakuacije velikih voda i osmatranja brana od valjanog betona. Na taj način istaknute su najvažnije osobenosti RCC brana, kao i sličnosti i razlike u odnosu na klasične brane od hidrotehničkog betona, koje se moraju imati u vidu prilikom projektovanja.