Design and construction of high concrete face rockfill dam

In recent years, some concrete face rockfill dams each with a height of 150 190 m have been built in the world. At present, there are still 7 concrete face rockfill dams each with a height of 150 240 m that will be started to build. But the structural cracks generally take place in the face slabs of these high constructed dams. Some cracks are up to 50 mm wide. In a few dams, the cushion material loss occurred. On the basis of the analysis on the prototype observation results from the concrete face rockfill dam of Tianshengqiao First cascade Hydropower Station, the author put forwards some suggestions on improving the design and construction of concrete face rockfill dam.