Study on Rockburst Nucleation Process of Deep-Buried Tunnels Based on Microseismic Monitoring

Figure 14

Shear stress and acoustic emission during surrounding rock failure in an underground cavern for different inclinations () of the weak structural plane. (a) Shear stress and acoustic emission distribution during crater formation, = 30°, and (b) shear stress and acoustic emission distribution during crater formation, = 45°.

(a) = 30°

(b) = 45°