Diversion Scheme for Yuliang Hydro-Junction Project of Youjiang River in Construction Period

Determination of construction diversion scheme is the most important part in the hydro-junction engineering design of inland waterway, which will influence the general layout, construction time and total cost. Based on the method of combining remote-controlled self-propelled ship model test with physical model test, the velocity and flow pattern of diversion channel in the first construction period, navigation flow condition of temporary channel, the velocity and flow pattern of release sluice and the navigation flow condition during the second construction period were analyzed in this paper. The problems in the construction diversion scheme were studied, and the improve measures which could meet the requirement for navigation and diversion were proposed.