Research Article

Effects of Unidirectional In Situ Stress on Crack Propagation of a Jointed Rock Mass Subjected to Stress Wave

Figure 6

The crack distribution patterns of the parent body of Model 1 using the ZDF-3 electric spark. (a) No cracks visible on the top surface of the parent body. (b) A Livingston blast crater with a diameter of approximately 52 cm and a depth of 10 cm at the bottom of the parent body.
(a)
(b)