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Journal of Hydrodynamics

, Volume 18, Issue 1, pp 13–18 | Cite as

Hydrodynamic problems associated with construction of sea-crossing bridges

Keynote Lecture
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Abstract

The hydrodynamic problems associated with the construction of the sea-crossing bridge were proposed. The first issue is the environmental impacts of the sea-crossing bridge piers on the changes of flow fields and sediment transport, which is a major factor in determining the location of the navigable opening of the Yangtze estuary bridge. Numerical and experimental results of the bridge piers on the tidal flows in the Yangtze estuary were presented by the use of the shallow water equations and physical model of the Yangtze estuary. The local structures of the complicated turbulent flows around a bottom-mounted pier and the resultant local scouring are the second issue which reserves much attention in scientific research. Based on the Reynolds averaged Navier-Stokes equations and the k-omega turbulence model, numerical results of the turbulent flows around the single pile and grouping piles were studied numerically. The third issue is the hydrodynamic loads on the piled slab pier of the sea-crossing bridges in the action of irregular wave-current combination. Based on the experimental results of the wave-current loads on each pile of the grouping piles and the slab of the Donghai bridge, the effects of grouping piles were discussed.

Key words

hydrodynamic loads local scouring environmental impact sea-crossing bridge piles 

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Copyright information

© China Ship Scientific Research Center 2006

Authors and Affiliations

  1. 1.Department of Engineering MechanicsShanghai Jiao Tong UniversityShanghaiChina

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