A device for reducing vibration of steel pipe pile foundation in marine engineering

Abstract

The invention discloses a device for reducing vibration of an oceanographic engineering steel pipe pile foundation. The device comprises an upper portion structure and a lower portion structure, wherein the position, above the water surface, of a steel pipe pile (2) is fixedly sleeved with the upper portion structure, and the position, close to the water surface and below the water surface, of the steel pipe pile (2) is movably sleeved with the lower portion structure. The lower portion structure comprises a lower base plate (21) with the front potion being in a sharp corner shape and the middle rear portion being rectangular, a hole used for penetrating through the steel pipe pile (2) is formed in the lower base plate (21), and a cylindrical lower inner enclosing plate (18) is vertically fixed to the hole. A plurality of vertical supporting rods are evenly distributed on the outer circumference of the lower inner enclosing plate (18), the bottom ends of the vertical supporting rods (5) are connected with the upper surface of the lower base plate (21), and the top ends of the vertical supporting rods (5) penetrate through the upper portion structure. According to the device for reducing vibration of the oceanographic engineering steel pipe pile foundation, an impacted angle structure is formed on the periphery of the pile foundation so as to reduce the impacted area of the pile foundation, and a turbulent flow belt used for disorganizing vortex releasing of pile completion is arranged on the pile completion, so that transverse vibration load acted on a pile body is reduced, and vibration of the pile body is inhibited.

Description

technical field [0001] The invention relates to a device for reducing the vibration of steel pipe pile foundations in marine engineering, and belongs to the technical field of steel pipe pile foundation protection in marine engineering. Background technique [0002] In recent years, with the increasing demand for energy, the scale of marine engineering construction is increasing day by day. At present, steel pipe piles are often used as foundations for marine engineering structures. Compared with other types of pile foundations, steel pipe piles are prefabricated and the offshore construction equipment is relatively mature, which can effectively save the construction cost of pile foundations in complex operating environments and shorten the construction period. However, in the actual use of steel pipe piles, there are some problems that deserve the attention of engineering designers, such as the problem of vortex-induced vibration of pile foundation in the flow field and th...

AI Technical Summary

Problems solved by technology

It is widely used due to good engineering practice, but it requires external current, which increases energy consumption and relatively complicated component installation

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