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The document discusses snap through failure in large shield-driven tunnels. Shield-driven tunnels are commonly used in the Netherlands for their ability to provide safe excavation conditions in soft soil with high groundwater. Existing design methods assume circular tunnel shape and force equilibrium, with failure based on plastic hinge formation. However, research shows tunnels may fail through snap through instability before plastic hinges form. This poses risks for large diameter tunnels. Therefore, the

Author

Ingrid Irreño Palomo

Language

EN