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Abstract The vibration induced by the blasting excavation of a subway tunnel may cause harmful effects on the adjacent buried structures. To ensure the safety and stability of the adjacent buried structures, it is of great importance to investigate their dynamic response. In this paper, the civil air defense tunnel right above the subway tunnel, excavated using the drilling and blasting method, is studied. The in-situ tests are carried out to monitor the strain of the cross-section of the civil air defense tunnel and the vibration along the axis of civil air defense tunnel. The strain distribution characteristic of the cross-section and the propagation law of the vibration in the civil air defense tunnel is analysed based on the field monitoring data. Three-dimensional finite element simulation is also performed using the dynamic finite element program LS-DYNA and its reliability is verified by the field monitoring data. Based on the numerical simulation results, the positions of th

Blasting vibrationIvil air defense tunnelDynamic responseAximum charge per delayAfety criterionSubway tunnel