When the confining pressure increases to a certain value,dog-ear or V-shaped rockburst notches are generated in the surrounding rock and the surrounding rock is stable.

Influence of penetrating V-pits on leakage current of GaN based p-i-n UV detector

The cratering of underground explosion as a function of the depth of burst and the charge in solid medium was discussed by using an explosion similarity law.

The macroscopic damage is described, and the explosive compression coefficient values of three kind materials are obtained through apparent crater size fitting analysis.

V-shaped notch blasting is that cutting slots with certain depth along axis -direction of the hole is determined according to the blast-crazing, and then load uncoupled charge and detonation.

In this paper,incising blasting engineering in granite row stone exploitation as the research object,in order to analyze the fracturing mechanism principles of V-shaped notch blasting and the influence of blasting parameter changing to V-shaped notch blasting effect,the elastic-plastic isotropy and multi-notched hole of plane strain model is set up.