An offshore wind power pile foundation and its stability monitoring method

Abstract

The invention discloses an offshore wind power pile foundation and a stability monitoring method thereof. The offshore wind power pile foundation comprises a pile foundation main body and at least onescouring pit monitoring device fixed on the pile foundation main body. The scouring pit monitoring device comprises a monitoring main body, a lifting part controlling the monitoring main body to movetowards a seabed and a displacement measuring component, wherein the lifting part is used for driving the monitoring main body to move towards the seabed, and the displacement measuring component detects motion displacement of the monitoring main body. The stability monitoring method of the offshore wind power pile foundation is to calculate the depth of a scouring pit next to the monitored offshore wind power pile foundation through the initial position and the termination position of the monitoring main body. Compared with the prior art, the offshore wind power pile foundation uses a yaw device to realize stability monitoring in both reciprocating flow and non-directional flow. Meanwhile, a rolling bearing is utilized to realize rotation of the scouring pit monitoring device. The offshore wind power pile foundation is simple in structure and convenient to operate and achieves precise scour prevention.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to an offshore wind power pile foundation and a stability monitoring method thereof. Background technique [0002] With the continuous growth of domestic demand for energy, non-renewable resources such as oil are facing a trend of depletion, and renewable energy has attracted more and more attention and attention. As a new type of pollution-free and clean industry, offshore wind farms have begun to be established in my country, and offshore wind power technology has begun to be widely used. The tidal current energy, which is also rich in reserves and widely distributed, is also favored by various countries. It has great development prospects and commercial value. The installed capacity of offshore wind turbines in my country is also increasing year by year. Since both power generation devices are located in the ocean, combining offshore wind power and tidal current energy power ...

AI Technical Summary

Problems solved by technology

The water flow mixed with sediment near the surface of the seabed continuously scours the pile foundation, corrodes and damages the surface of the pile foundation, and in severe cases, it will cause the collapse of the offshore wind turbine unit

Therefore, the scour pit data around the foundation should be measured regularly. Conventional underwater manual measurement is time-consuming and laborious, which is not conducive to quickly determining the scour pit depth.

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