The invention discloses a discrete
landslide surge test and whole-process wave amplitude prediction method based on speed equivalence. According to the method, a three-dimensional
physical model is established according to Froude similarity criteria, and accurate control over the water entering speed of the slip
mass is achieved through speed equivalence. The high-position
landslide movement is divided into an initial state, a sliding-out state, a water entering state, a sliding-out stage and a sliding stage, and the speed of a slide body in each state is calculated by adopting a structural
strain energy method, an improved Pankend classification method and an
energy method. Through a multi-factor orthogonal test, the influence rule of the
landslide sliding speed, the
water entry volume and the initial
water depth on the surge characteristics is systematically analyzed, and a surge whole-process prediction
model system covering the initial wave amplitude, the
propagation attenuation and the dam front climbing height is constructed based on
test data. According to the invention, the problems of insufficient sliding speed control precision and lack of prediction model systematicness in the prior art are effectively solved, the test accuracy and prediction reliability are significantly improved, and important
technical support is provided for
risk assessment of landslide surge disasters in the reservoir area.