Abstract:By conducting physical model tests on scour protection of monopile foundation by two scour protection methods, the scour protection effect of different scour protection methods in an offshore wind farm under sea conditions is studied, and the cost analysis of different scour protection methods is also conducted. The results show that concrete interlocking row protection has stronger protection effect than riprap protection; concrete interlocking row protection can adapt to soil deformation through flexible deformation and achieve the effect of effectively preventing sand and soil loss; under comprehensive consideration, riprap with concrete interlocking row protection is the most suitable protection method for the hydrological environment of this wind farm.