INFLUENCE OF HANGZHOU BAY MAJOR BRIDGE ON WATER ENVIRONMENT

摘要

The Hangzhou Bay Major Bridge from Zhengjiadai to Shuiluwan is 36 km in length and it is the longest bridge across a sea in the world. A physical model is used for investigating the influence of the Hangzhou Bay Major Bridge on the water environment such as the tidal level, velocity, tidal volume, flood and Qiantang Bore. The model obeys similarity criteria for gravity, resistance and flow continuity. It is molded according to the chart in September 2000 and verified well with hydrometric data at the same time. The research indicates that the influence of the Hangzhou Bay Major Bridge on the flow of the Qiantang Estuary is mostly limited nearby the bridge, and on the Qiantang Bore and flood is little in essence.