Abstract:Affected by two continuous rapids including the upstream Doulizi rapids and downstream Dongxikou shoals,the navigation condition of Dongxikou waterway is poor.Aiming at the existing problems of Dongxikou waterway at present,three different regulation schemes are given.To analyze the effect of different schemes,the condition and difficulty of ships’ ascending,as well as the navigation parameters,we adopt the small- scale ship model for the ship’s ascending rapids test.According to the comparative analysis results,we choose the best engineering scheme,through which,the advantage of the ship model test is highlighted.This test has the advantage of the ship model test in river model measurement technique and application value in engineering.