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

<div>The model with cement mortar, including an in situ stress loading system and data acquisition system: (a) ZDF-3 electric spark source; (b) blast hole with water seal; (c) steel pipe; (d) eight-channel ultradynamic data acquisition machine (DH5930); (e) prestressing anchorage; (f) center hole jack; (g) ZB-500 electric fuel pump; (h) strain brick.</div>

Shock and Vibration

fig2

Figure 2

Figure 2: Effects of Unidirectional In Situ Stress on Crack Propagation of a Jointed Rock Mass Subjected to Stress Wave 