Influence of Fissure Number on the Mechanical Properties of Layer-Crack Rock Models under Uniaxial Compression

Figure 9

Schematic diagram of the occurrence mechanism of rock burst: (a) crack initiation and propagation, (b) formation of the layer-crack structure, (c) strain energy accumulation, and (d) occurrence of dynamic instability.

(a)

(b)

(c)

(d)