Tunnels & Underground Engineering
Metro Excavation, Tunnel Monitoring & Pile Foundations
UW-FBG distributed strain and temperature sensing deployed in deep excavations and underground structures — enabling real-time monitoring of diaphragm walls, tunnel linings, and smart pile foundations.
Featured Project
Real-world deployment showcasing UW-FBG sensing in metro deep excavation.
Shanghai Metro Line 18 — Deep Excavation Fiber Optic Monitoring
Distributed strain and temperature sensing cables symmetrically installed inside the diaphragm wall of Changjiang South Road Station deep excavation. Enables real-time online monitoring of deep horizontal displacement and internal force distribution during metro construction. The system utilizes UW-FBG arrays with 0.5m spatial resolution, providing comprehensive structural health data throughout the excavation process.
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