Back سد ثقلي عقدي Arabic Tağ-qravitasiya bəndləri Azerbaijani Bogengewichtsmauer German Τοξωτό φράγμα βαρύτητας Greek Arkogravita akvobaraĵo Esperanto Presa de arco gravedad Spanish Barrage-poids voûte French סכר קשת-כבידה HE चाप-गुरुत्व बाँध Hindi 重力式アーチダム Japanese
An arch-gravity dam or arched dam is a dam with the characteristics of both an arch dam and a gravity dam. It is a dam that curves upstream in a narrowing curve that directs most of the water pressure against the canyon rock walls, providing the force to compress the dam. It combines the strengths of two common dam forms and is considered a compromise between the two. They are made of conventional concrete, roller-compacted concrete (RCC), or masonry. A typical example of the conventional concrete dam is the Hoover Dam. Changuinola Dam is an example of the RCC arch-gravity dam. A gravity dam requires a large volume of internal fill.[1] An arch-gravity dam can be thinner than the pure gravity dam and requires less internal fill.[2]
- ^ Samartín, Avelino; Fuente Martín, Pablo de la; Plaza, Luis F.; Penas, Jesús (1998). "Preliminary design of symmetric arch-gravity dams". In Berga, L. (ed.). Dam Safety: Proceedings of the International Symposium on New Trends and Guidelines on Dam Safety, Barcelona, Spain, 17–19 June 1998. Balkema. pp. 425–432. ISBN 978-90-5410-975-4.
- ^ "Arch Gravity dam". U.S. Bureau of Reclamation. Archived from the original on 25 December 2007. Retrieved 2007-12-27.