Hydraulic movable dam water retaining and flood discharging system for water conservancy project

The invention discloses a hydraulic movable dam water retaining and flood discharging system for a water conservancy project, and relates to the technical field of movable dams. A dam body unit comprises a supporting pile foundation and further comprises a lower water retaining plate and an upper water retaining plate which are rotationally connected between two dam body bearing pile foundations,wherein the lower water retaining plate and the upper water retaining plate are in a C shape and are in central symmetry; and a turnover type linkage structure is formed between the top of the convexface of the lower water retaining plate and the supporting pile foundation through a first electric hydraulic cylinder, a turnover type linkage structure is formed between the top of the concave faceof the upper water retaining plate and the supporting pile foundation through a second electric hydraulic cylinder, and an existing movable dam structure is changed into a side-by-side opening type from an original single openi