电子雷管提高了延期精度以及起爆网路设计的灵活性, 可实现“生产–运输–储存–使用”
全生命周期安全管控, 成为民爆行业重点发展方向. 本文从产品结构, 应用场景, 智能化水平 …

Understanding the behavior of rock under blast-and shock-induced loadings requires a high-
fidelity constitutive model. The present paper provides a detailed comparison study of three …

The paper presents a procedure for determining Johnson-Holmquist II (JH-2) model
parameters for dolomite rock. The constants were determined based on experiments …

Electronic detonators not only improve delay accuracy and the flexibility of initiation network
design, but also realize the full lifecycle safety control of detonators from production to …

A series of detailed small-scale tests have been made to investigate the use of short delays
to promote better fragmentation caused by shock wave interactions. The block design had a …

In this paper, the Johnson-Holmquist II (JH-2) model with parameters for a dolomite rock was
used for simulating rock fragmentation. The numerical simulations were followed by …

Fractures in rock cylinders with a central blasthole have been investigated, focusing on the
borehole expansion, the crushed zone around the borehole, and the effects of the boundary …

The high-energy rate of shock waves, as an important part of explosion energy, plays a
significant role in the mechanism of rock fragmentation. This energy rate and the mechanism …

In rock engineering, blasting works are often carried out near the existing underground
caverns, like tunnels, mine roadways and storage caverns. Moreover, the natural fractures …

It is shown that blast fragmentation data in the form of sets of percentile fragment sizes, x P,
as function of specific charge (powder factor, q) often form a set of straight lines in a log (x P) …