Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition

Figure 20

Failure form of the tested specimen under different support failure rates: (a)  = 0.1 MPa/s; (b)  = 0.5 MPa/s; (c)  = 1.0 MPa/s; (d)  = 2.0 MPa/s.

(a)

(b)

(c)

(d)