基于光纤与土压力盒协同监测的路基病害识别方法及系统

By coordinating the deployment of fiber optic sensors and earth pressure cells in the roadbed, a stress-strain correlation model was established, which solved the problem of insufficient correlation of roadbed disease monitoring data in the existing technology and achieved highly accurate and reliable disease identification.

CN122020077BActive Publication Date: 2026-07-17SHANDONG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Filing Date
2026-04-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for monitoring roadbed defects are insufficient to fully reflect the complex mechanical state inside the roadbed, and multi-source monitoring data have failed to effectively establish an internal correlation, resulting in a decline in the accuracy and reliability of defect identification.

Method used

By coordinating the deployment of fiber optic sensors and earth pressure cells in different soil layers of the roadbed, a correlation model between multi-source data is established. A stress-strain spatiotemporal mapping model is constructed using machine learning methods to achieve data fusion analysis and disease identification.

Benefits of technology

It improves the accuracy of subgrade disease identification and the reliability of system operation, and can effectively identify diseases such as settlement, uneven deformation, shear failure and voiding under complex working conditions, and dynamically adapt to the evolution of subgrade condition.

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Abstract

本发明提出了基于光纤与土压力盒协同监测的路基病害识别方法及系统,属于道路工程结构健康监测与智能诊断技术领域,包括:在路基不同土层中协同布设光纤传感器与土压力盒,分别获取路基土体的分布式应变数据和局部应力数据;基于获取的数据建立多源监测数据之间的关联模型;所述关联模型利用路基土体的分布式应变数据和局部应力数据预测监测数据的变化形式;将实测数据与预测数据进行融合分析,基于分析结果识别与判定路基病害。
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