Research Of Sutong Bridge Huge Pile Foundation Scour

By test, design and successful practice of main pylon huge pile foundation, Sutong Bridge forms a complete set of huge pile foundation scour protection technique &construction method estuary area.Because the river near the Sutong Bridge is easy to be soured and Sutong Bridge has a huge pile foundation , research test which used normal mold had successfully designed and done the sour test . From the sour test we got the different sour condition caused by the tide and the water which has a stable speed, and also got the discount coefficient of the max sour deepness, and form the sour test we can analyze the basic mechanism of partial sour caused by tide.It is a new and challengeable problem to study the sour project and huge pile cap foundation scour protection. In Sutong Bridge project, it is the first time to perform bagged sand scour protection prior to pile foundation construction, resolve riverbed local scour caused by pile foundation construction, which ensured the project is going on successfully. Besides, the sinking apron principle in the scour protection design is an innovation.The successful sour protection has powerfully provided that the study and optimize of the project is completely correct. In the basis of construction, Sutong Bridge establishes scour protection material dropping and molding construction technique, forms reasonable construction craftwork and method.