Overview of RCC Dam Construction Technologies of Several Dams

摘要

Sinohydro Engineering Bureau 8 (referred to as the "SEB8" hereinafter) started to conduct RCC performance tests and researches of RCC dam construction technologies in the 1980s and built Puding Arch Dam (75m high) in 1993, the highest RCC arch dam in the world at that time, with a lot of achievements made in RCC materials, seepage control, dam jointing, pouring process, formwork, and construction process. This project was followed by more than 20 RCC dams, including Dachaoshan, Hongpo, Shapai, Suofengying and Dahuashui. Based on a series of key scientific researches completed with local institutes and important achievements made during the "8th five-year plan" period, a complete set of advanced and mature construction technologies have been established in the process of tackling key scientific and technological programs set for the "9th five-year plan" period. Breakthrough achievements have been made in studying and applying new technologies, new materials, new processes and new equipments, which provide appropriate solutions to technical difficulties in RCC construction. This paper reviews and briefs the characteristics and innovations of RCC dam construction technologies in different ages of SEB8.