Blasting is still the most cost effective methodology to break rock for mining; however, this can lead to damage to the host rock mass. Damage control is crucial; it allows to minimise failures, overbreak, and unstable ground. Therefore, knowing the extent of the fractures generated by a blast is important for designers to correctly plan the underground space; in fact, generally, pillars are left in place to ensure stability. Their dimensions are designed in order to have a sufficiently high bearing capacity based on the in-situ conditions; however, these conditions can worsen with blasting, reducing their bearing capacity and putting at risk the stability of the underground environment.