水毁, 建设, 管理

In 2016, Qingjiang cascade hydropower stations experienced six rounds of heavy rainfall, especially the 7·19 once-in-a-century severe flood. In October 2017, Qingjiang cascade hydropower stations experienced another severe autumn flood. Gates of three cascade reservoir dams were opened simultaneously for flood discharge. Affected by heavy rain and flood discharge, some hydraulic structures, slopes, bank revetments and drains were damaged. The damage repair projects for Qingjiang cascade hydropower stations lasted for nearly 3 years, including 17 major projects and 39 parts, with a repaired area of nearly 90 000 m² and concrete pouring volume of 17 000 m³ . The construction management experience of the repair project is summarized to provide reference for similar projects.

washout, construction, management