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

<div>Photographs of the inner wall under initial confining stress of (a) 10, (b) 20, and (c) 30 MPa. Comparison of failure fragments in the field and test, (d) the face of the tunnel [<a href="/journals/sv/2020/3158209/#B32">32</a>], (e) and (f) failure fragments of specimen.</div>

Shock and Vibration

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Figure 5

Figure 5: Influence of Deviatoric Stress on the Deformation and Damage Evolution of Surrounding Rock under Unloading Conditions 