As drilling and blasting technique is applied in deep mining, its practical performance with
respect to rock fragmentation becomes a serious concern because high in-situ stress …

Blasting using decoupled charge is extensively applied in rock excavation and rock
fragmentation. In this study, the rock fragmentation induced by blasting using decoupled …

High in-situ stress can limit the generation of rock fractures induced by blasting, which
usually shows different states of rock fragmentation with those under low-stress conditions …

Decoupled charge structures are widely used in contour blasting because of their lower
peak value and loading rate of the borehole wall pressure (BWP), which plays an important …

This paper presents a 3D coupled Smoothed Particle Hydrodynamics (SPH) and Finite
Element Method (FEM) model, which was developed to investigate the extent of damage …

The existence of cracks in the surrounding rock significantly affects tunnel stability under
dynamic disturbances. To study the fracture mechanism of tunnels in fractured rock masses …

A physical model test is carried out to simulate the blasting disturbance on the underground
tunnel. The test including four blasting events with different blasting locations, where two …

Decoupled cylindrical charge structure is widely used in contour blasting to reduce
overbreak and control rock damage, which is critical to the safety and efficiency of rock …

Abstract The original Holmquist-Johnson-Cook (HJC) model, which can only capture the
compressive behaviour but not the tensile behaviour of brittle materials, is modified in this …

Controlling rock damage induced by lateral blasting excavation is a source of concern. In
underground mines, large-diameter-hole lateral blasting excavation often causes …