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This study investigates a pretensioned bolt–cable combined support system for large-span tunnelling, specifically applied to the Badaling tunnel with a span of 32.7 m and a cross-sectional area of 494 m2. The research includes numerical modeling and field monitoring to analyze the mechanical characteristics and deformation behaviors of the rock mass during tunnelling, demonstrating the effectiveness of the support system in reinforcing the rock mass and ensuring the safety of the primary lining. The finding

Author

colombia

Language

EN