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Urban Lifeline Safety Engineering Application

Seismic waves are the beacon that illuminates the underground space.

Urban Geological Structure Monitoring

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Figure1:Blue indicates harder rock and soil, while red represents softer rock and soil.

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Figure2:Through long-term monitoring of cavities, changes in the cavities can be detected.

Intrusion Detection and Early Warning System for Urban Underground Communication Optical Cables, Water Supply Pipelines, Heating Pipelines, Gas Pipelines, and Power Pipelines

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Figure3:Acoustic waves for detecting various third-party intrusion events

Structural safety monitoring and leakage detection for urban water supply pipelines and gas pipelines

The outstanding advantages of using distributed optical fiber acoustic sensing system for pipeline leakage monitoring:

Urban Road and Bridge Structural Health Monitoring

By monitoring the first vertical bending frequency changes of bridge structures within the city, the health status of bridge structures can be determined. If the first vertical bending frequency exceeds a certain threshold, it indicates that there is a problem with the bridge. The figure below shows that the first modal vertical bending frequency of a certain bridge is around 3.88Hz, and it has remained unchanged since the system was deployed.

桥梁一阶竖弯

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