Offshore wind power pile foundation and stability monitoring method thereof

By deploying distributed fiber optic strain sensors in offshore wind turbine pile foundations to acquire real-time strain data, inverting pile-soil contact stress, and adjusting digital twin model parameters, the limitations of measuring points and the dynamic evolution of soil parameters in traditional methods are solved, achieving both the accuracy of pile foundation stability monitoring and the reliability of long-term prediction.

CN121859422BActive Publication Date: 2026-07-21GUANGDONG POWER GRID CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG POWER GRID CO LTD
Filing Date
2026-03-17
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional methods for monitoring the stability of offshore wind turbine pile foundations suffer from limitations in measuring points and the inability to update the dynamic evolution of soil parameters in real time, which reduces the accuracy and reliability of long-term stability prediction and fatigue damage assessment.

Method used

By deploying distributed fiber optic strain sensors to acquire real-time strain data in the depth direction of the pile, the pile-soil contact stress information is inverted, and the soil mechanical property parameters in the digital twin model are adjusted to dynamically calibrate the model and reflect the true evolution of the soil.

Benefits of technology

It enables precise monitoring and assessment of pile foundation stability, improves the accuracy and foresight of long-term safety prediction and risk diagnosis, eliminates the limitations of traditional point measurement, and dynamically captures the evolution of soil parameters.

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Abstract

The embodiment of the present disclosure provides a kind of offshore wind power pile foundation and its stability monitoring method.The method comprises: obtaining real-time strain data in the depth direction of pile body;Determine the pile-soil contact stress information based on the real-time strain data;The pile-soil contact stress information is used as target value, the mechanical properties of soil in digital twin model are adjusted, to minimize the difference between the simulation value of the pile-soil contact stress information output by the digital twin model and the target value;The mechanical properties of soil and stability evaluation index are output by the digital twin model after adjustment.This embodiment of the present specification significantly enhances the accuracy and foresight of safety prediction and risk diagnosis by outputting the mechanical properties of soil and stability evaluation index by the calibrated digital twin model.
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