In this paper, the recent studies on the scour around pile foundation and the existing problems with the scour study are introduced, and the development process of pile foundation scour and the affecting factors for generating the scour pits are also discussed.

The existing offshore platforms become more and more unsteady because of the pile foundation scour,especially for the aged platforms which have served for a long term.

Combined with the features of the Shuibuya spillway,monographic study of the problems about high-speed water flow,such as batholith washing,air corrosion,corrosion reduction of aerated flow,atomization of water flow and so on is carried out and optimization measures are put forward for reference in designing.