Study On The Hydrodynamic Stability Characteristics Of The Floating Bulkhead And Its Model Testing

As dock gate and emergency gate using in standing water,the floating bulkhead has proven to be an effective method for dewatering intakes at dams,dock basin,canals,and hydro plants. But using a floating bulkhead as a door of checkgate is a new concept. Because of the complex boundary condition and the fluid-structure interaction,model testing is a very important method of researching in this field.By hydraulic modeling,this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water,and it's hydrodynamic stability characteristics that distinguish in standing water from in flowing water;And direct measurements of the forces acting on the model floating body during floating and sinking is taken. As a result,the rotation stress curves are produced and analyzed;To provide data for optimum operation schedule analyses of the sluice,the relationship of the impact forces acting on the side wall of the gate and the running speed is studied;The reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper.