Pile-soil simulating device and method under wave load

Abstract

The invention discloses a pile-soil simulating device and method under a wave load. The device comprises a wave simulator, a plurality of pipes, and a model pile. The pipes are sequentially and axially connected to form a cylindrical pipe. The bottom of the cylindrical pipe is arranged on a base platform. The top of the cylindrical pipe is provided with a top cover. The model pipe is arranged in the cylindrical pipe. Fillers are filled between the model pipe and the internal wall of the cylindrical pipe. The wave simulator is connected to the top cover. The provided pile-soil simulating device can precisely simulate the mechanical characteristics of sea. By directly applying a simulated wave load on the water pressure of pores, accurate data can be obtained. Furthermore, the structure of the whole device is simple; the operation is convenient; the device can work for a long time, and can simulate many conditions of seabed and wave; the experiment material can be repeatedly used, the pollution is little, and the cost of single experiment is low.

Description

Technical field [0001] The invention relates to a technology in the field of engineering simulation, in particular to a pile-soil simulation device and method under wave loads. Background technique [0002] As the most common form of foundation, pile foundation is widely used in marine structures. However, its forces in terrestrial and marine environments are very different. Under long-term marine environmental loads, the bearing capacity of the superstructure, that is, the seabed soil, will decrease to varying degrees. During the propagation of wave loads, a large cyclic wave pressure will be generated on the seabed. This cyclic wave pressure causes the excess pore water pressure in the seabed to gradually increase and accumulate with the cyclic action of waves, and the dynamic strength of the seabed is significantly reduced. When the accumulated excess pore water pressure develops to a level equivalent to the total stress, the seabed soil is liquefied and the foundation loses ...

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Problems solved by technology

[0004] Aiming at the difficulty of simulating the mechanical properties of seabed soil in ocean environments such as waves and the inability to solve the dynamic response problem of wave-pile foundation-seabed soil in the prior art, the present invention proposes a pile-soil simulation device and method under wave load , which can accurately simulate the mechanical properties in the ocean, and obtain accurate data by directly loading simulated wave loads on the pore water pressure

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