In situ stress in deep rock masses has a significant effect on directional fracturing during slit
charge blasting. In this paper, the stress distribution around a borehole under high static …

The blasting response of jointed rock mass under high-stress conditions is studied in a
laboratory experiment using model specimens. The crack initiation mode and initiation angle …

Using a dynamic-static experimental loading device and a digital laser dynamic caustic
system, the effect rules for blasting induced main cracks responding to an initial static stress …

This paper experimentally investigates the fracture process of sandstone specimen
containing a pre-cut hole under coupled static and dynamic loads. A new experimental …

Deep rock mass stores large amounts of energy. Energy accumulation, dissipation, and
release during the deformation and failure of rock mass occur when the rock mass is …

During underground hard‐rock mining, the drilling and blasting method currently remains
the most economical excavation method, and the rock may experience a multistrain‐rate …

When underground cavities are subjected to explosive stress waves, a uniquely damaged
zone may appear due to the combined effect of dynamic loading and static pre-load stress …

The in-situ stress has great influence on blasting damage during deep tunnel excavation.
However, the effects of in-situ stress on the blasting damage during tunnel excavation are …

Blasting excavation of rock masses under high in-situ stress often encounters difficulties in
rock fragmentation and a high boulder rate. To gain a deeper understanding of this issue …

Cut blasting is a key step in the drill and blast method. In underground engineering,
confining pressure has a significant influence on the cut cavity formation process. In this …