| 摘要 |
FIELD: hydraulic strictures, particularly river and marine engineering structures adapted to control floods. ^ SUBSTANCE: structure comprises continuous row of protective barriers pivotally connected by the first end to plates arranged along upper base of protective dam or bank slope to provide rotation and fixing thereof in working position, underwater mechanisms arranged along protective barriers and cooperating with them. Underwater mechanisms are spaced apart and transmitting translational movement of pistons with rods into protective barrier rotation. Underwater mechanisms are formed as cylinders and pistons with rods installed in each cylinder. Each piston rod is provided with sealing members and has through longitudinal orifice formed along vertical axis of piston and rod thereof. Cylinders are communicated with water area through drainage pipes adapted for water runoff and provided with check valve for water entry from water area. Outlet orifice of each drainage pipe is located above average water level of water area, inlet drainage pipe orifice for water inlet is located 100-150 mm above upper base of protective dam or bank slope. Piston rods are connected to protective barriers through rotary cables which pass over pulleys supported by brackets or through rotary pull bars. The structure has spaced apart supports installed transversely to protective barrier row and secured to plates. The supports have edge inclined towards offshore water area surface. ^ EFFECT: increased reliability of flood protection and improved hydraulic structure reliability, enhanced automaticity of the structure. ^ 10 dwg |
