Road tunnels are critical components in road transportation networks. In their service life
they may subject to explosion loads from terrorist bombing attacks, engineering blasting for …

The mining and construction industries have long been faced with considerable attention
and criticism in regard to the effects of blasting. The generation of ground vibrations is one of …

Cut blasting with single free surface is the first step of the large-diameter long-hole (LDL)
mining method, which creates more relief space for subsequent blasting procedures. The …

The occurrence of disasters in deep mining engineering has been confirmed to be closely
related to the external dynamic disturbances and geological discontinuities. Thus, a …

A series of dynamic tests were performed using a split Hopkinson pressure bar device to
investigate the effect of coplanar elliptical flaws with a range of inclination angles on the …

Hard rock failure and rockburst hazards under high in situ stresses have been the subject of
deep rock mechanics and engineering. Previous investigations employed cubic rock …

The theoretical formulas were firstly derived to quantitatively assess the relative velocity
around a circular tunnel induced by blasting loads, and the influence of wavelength-to …

Extended finite element analysis was performed to investigate the cracking and failure
characteristics of the segmental lining structure of an underwater shield tunnel upon a …

Construction of tunnels is often associated with fault or structural features that could affect
tunnel stability during the construction phase and service life. Therefore, failure …

One highly effective approach for tunnelling in rock at deep depth is blasting. The damage
and in-situ stress redistribution in the surrounding rock mass induced by the blast loading …