为寻求水垫塘防护理念上新的突破,结合目前研究现状,针对高坝挑流消能防冲护底问题,采用模型试验与数值模拟相结合的手段,分析和模拟了挑流消能的关键问题——塘消能与冲刷过程,比较了传统平底水垫塘和块体护底水垫塘的水流形态、塘内水面线、流速分布及底板压力,得出冲击区的抗冲块体能明显降低水流对结构的破坏能力,块体护底水垫塘可缩减传统水垫塘尺寸。 In order to find a new breakthrough in the protection concept of plunge pool, aiming at the current problems in the current research, aiming at the problem of pick-off energy-dissipating and defending base of high embankment, a model test and numerical simulation are used to analyze and simulate the energy dissipation of pick- The key problem - the pond dissipation and scouring process, compares the water flow pattern, the water surface line, the flow velocity distribution and the floor pressure in the traditional flat-bottom plunge pool and the block bottom plunge pool, Reduce the damage to the structure of the water flow, the block base plunge pool can reduce the size of the traditional plunge pool.