Influence of Deviatoric Stress on the Deformation and Damage Evolution of Surrounding Rock under Unloading Conditions

<div>Illustration of the tunnel excavation unloading test system: (a) the unloading test machine; (b) the strain monitoring system; (c) the AE monitoring system.</div>

Shock and Vibration

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Figure 1

Figure 1: Influence of Deviatoric Stress on the Deformation and Damage Evolution of Surrounding Rock under Unloading Conditions 