River Thresholds and Dams: Hydraulic Structures and Installations

This lecture covers the design and operation of river thresholds and dams, focusing on hydraulic structures and installations such as weirs controlled by gates, cofferdams, and inflatable valves. It explains the forces acting on valves, flow coefficients, and the principles of flooded valve flow. The instructor discusses the critical flow, uniform steady flow, and different types of flow regimes in rivers. The lecture also delves into the concept of hydraulic jumps, energy dissipation structures, and the design considerations for buffer basins to protect the riverbed. Various examples and calculations are provided to illustrate the key concepts and practical applications in hydraulic engineering.