Reduction of fragment size from mining to mineral processing: a review

ZX Zhang, JA Sanchidrián, F Ouchterlony… - Rock Mechanics and …, 2023 - Springer
The worldwide mining industry consumes a vast amount of energy in reduction of fragment
size from mining to mineral processing with an extremely low-energy efficiency, particularly …

Numerical study on blast-induced fragmentation in deep rock mass

X Li, K Liu, J Yang, R Song - International Journal of Impact Engineering, 2022 - Elsevier
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 …

Numerical investigation on rock fragmentation under decoupled charge blasting

X Li, K Liu, Y Sha, J Yang, R Song - Computers and Geotechnics, 2023 - Elsevier
Blasting using decoupled charge is extensively applied in rock excavation and rock
fragmentation. In this study, the rock fragmentation induced by blasting using decoupled …

[HTML][HTML] Experimental and numerical studies of the blast-induced overbreak and underbreak in underground roadways

Z Hong, M Tao, X Cui, C Wu, M Zhao - Underground Space, 2023 - Elsevier
Overbreak and underbreak are the crucial problems during the blasting excavation of
underground tunnels owing to their effects on the construction costs and operational safety …

[HTML][HTML] Comparison of selected blasting constitutive models for reproducing the dynamic fragmentation of rock

M Kucewicz, P Baranowski, Ł Mazurkiewicz… - International Journal of …, 2023 - Elsevier
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 …

[PDF][PDF] Numerical modelling of destress blasting–a state-of-the-art review

S Miao, P Konicek, PZ Pan, H Mitri - Journal of Sustainable …, 2022 - bibliotekanauki.pl
As a proactive mine safety measure against the occurrence of rockburst, destress blasting
has been applied to numerous mining conditions to precondition highly stressed rock mass …

Rock damage control for large-diameter-hole lateral blasting excavation based on charge structure optimization

X Huo, X Shi, X Qiu, J Zhou, Y Gou, Z Yu… - … and Underground Space …, 2020 - Elsevier
Controlling rock damage induced by lateral blasting excavation is a source of concern. In
underground mines, large-diameter-hole lateral blasting excavation often causes …

The effect of stress wave interaction and delay timing on blast-induced rock damage and fragmentation

A Saadatmand Hashemi, P Katsabanis - Rock mechanics and rock …, 2020 - Springer
Rock fragmentation by blasting is the most efficient way of rock breakage in hard rock mining
applications. Fragmentation, as well as the properties of the fragments generated by the …

Attenuation characteristics of shock waves in drilling and blasting based on viscoelastic wave theory

Z Ye, J Yang, C Yao, X Zhang, S Jiang… - International Journal of …, 2023 - Elsevier
This study investigates the propagation and attenuation characteristics of shock waves
produced by drilling and blasting. The focus is on a novel method for calculating the …

Cracking behavior of brittle materials under eccentric decoupled charge blasting

Y Xu, M Tao, Y Liu, Z Hong, C Wu - Engineering Failure Analysis, 2024 - Elsevier
The decoupled charge structure is often used in controlled blasting. However, in actual
engineering scenarios, boreholes are typically horizontal or inclined. The explosive is close …