Numerical modelling for blast-induced fragmentation in sublevel caving mines

C Yi, J Sjöberg, D Johansson - Tunnelling and Underground Space …, 2017 - Elsevier
The flow behavior of the ore and waste significantly affect the dilution in sublevel caving
(SLC) mines. Drill and blast issues are identified as having a substantial impact upon SLC …

[HTML][HTML] Shock-induced fracture of dolomite rock in small-scale blast tests

P Baranowski, M Kucewicz, M Pytlik… - Journal of Rock …, 2022 - Elsevier
This paper attempts to study dolomite failure using small-scale blast tests. The experimental
setup consisted of a cylindrical specimen with a central borehole fitted with a detonation …

Assessment of the blasting efficiency of a long and large-diameter uncharged hole boring method in tunnel blasting using 3D numerical analysis

MS Kim, CY Kim, MK Song, SS Lee - Sustainability, 2022 - mdpi.com
Cut blasting is one of the most essential processes to reduce blast-induced vibration in
tunnel blasting. The long and large-diameter uncharged hole boring (LLB) method is an …

Study of rock fracture under blast loading

P Baranowski, M Kucewicz, M Pytlik… - Bulletin of the Polish …, 2022 - yadda.icm.edu.pl
A study of dolomite rock material failure using a simple small-scale blast setup is presented.
Laboratory tests were conducted using disc specimens drilled with a borehole in the center …

Effects of Fragmentation on Production at Peak Mine, Midlands, Zimbabwe.

R VERMA - Midlands, Zimbabwe.(March 13, 2024), 2024 - papers.ssrn.com
Over the years, the cost of production at Peak Mine Midlands, Zimbabwe, has been high due
to oversized rock fragments. This led to increased mining costs far above what was planned …

Analyzing the Effects of the Initiation Sequences of the MDS Blasting Method on Rock Fracturing Using SPH-FEM Coupling Technique

BH Choi, YG Kim, KC Jeon, SW Oh - Explosives and Blasting, 2023 - koreascience.kr
The conventional bench blasting method uses the bottom initiation in all blast holes in a
round, whereas the MDS (mixture detonation system) method applies the bottom and top …

Effects of fragmentation on production at Peak mine Midlands, Zimbabwe

TFK Ngoroyemoto, RS Ashley, V Rahul, T Tsidzinye… - 2023 - repository.biust.ac.bw
Over the years, the cost of production at Peak Mine Midlands, Zimbabwe, has been high due
to oversized rock fragments. This led to increased mining costs far above what was planned …

[PDF][PDF] Effects of fragmentation on production at Peak mine Midlands, Zimbabwe

T Nyamagudza, R Suglo - researchgate.net
Over the years, the cost of production at Peak Mine Midlands, Zimbabwe, has been high due
to oversized rock fragments. This led to increased mining costs far above what was planned …

Утицај променљивости особина зарушеног стенског материјала на гравитациони ток код метода подетажног зарушавања

VD Lapčević - 2020 - search.proquest.com
Основни недостатак методе подетажног зарушавања је релативно високо
осиромашење садржаја метала у ровној руди услед прилива јаловог материјала …

Integrating the Hoek-Brown Failure Criterion into the Holmquist-Johnson-Cook Concrete Material Model to Reflect the Characteristics of Field Rock Mass in LS-DYNA …

BH Choi, C Sunwoo, YB Jung - Explosives and Blasting, 2020 - koreascience.kr
In this paper the Hoek-Brown (HB) failure criterion is integrated into the Holmquist-Johnson-
Cook (HJC) concrete material model to reflect the inherent characteristics of field rock …