Abstract：
In light of the characteristics of floating transportation for elements of an immersed tunnel in an inland river, an element-floating motion model and a cable tension calculation model are established and hydraulic calculation formulas for floating transportation are given. The floating transportation of elements in still water and water with different flow rates and different flow angles are simulated and calculated. The floating state and stability of elements during floating transportation are analyzed for a certain freeboard. Results show the established model is applicable to simulating the hydraulic characteristics and stability analysis of an immersed tunnel element during floating transportation in an inland river. The flow rate and flow angle have significant effects on the amplitude and frequency of the swing and the first roll of elements during floating transportation, and transporting elements in a crossflow direction should be avoided as much as possible.
.Hydraulic Characteristics and Stability Analysis of an Immersed Tunnel Element during Floating Transportation in an Inland River[J] MODERN TUNNELLING TECHNOLOGY, 2018,V55(1): 170-177
2018, Vol. 55 