Rock-filled concrete dams are built in mountainous regions, where local rock materials can be fully utilized. Among these dam sites, many are associated with topography and geological conditions that are suitable for constructing arch dams. Arch dams are known with many salient features such as concrete-saving, cost-efficient and with strong seismic overload capacity. Thus, the rock-filled concrete arch dams have been pioneered and practiced in China over the past decade. Development of RFC arch dam dates back to early 2010s, when the first RFC arch dam, the Mengshan reservoir project in Shandong Province, was constructed. It is a small-sized (Grade V) reservoir, which was designed as a single curvature arch dam with a height of 24.5 m. After completion of the Mengshan arch dam in March 2013, another notable RFC arch dam, the Baijia double-curvature arch dam with a height of 69 m, was constructed. Being completed and impounded in 2016, it was the highest RFC arch dam for the time being, while the dam body uses C20 RFC. A notable feature of Baijia arch dam is that a new structural type of upstream impermeable zone was designed and constructed to overcome potential weakness of conventional concrete impermeable zone. It was a 500 mm-thick HSCC layer being simultaneously poured with dam body. Without installing any cooling pipes, onsite monitored hydration temperature rise in Baijia arch dam is only about 8–13 °C.
Design of RFC Arch Dam
Hydroscience and eng.
2022-02-14
25 pages
Article/Chapter (Book)
Electronic Resource
English
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|Aesthetic Design of Haneda Sky Arch
Transportation Research Record | 1996
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