Results 11 to 20 of about 711,778 (240)

Aspects of energy requirements for rock drilling [PDF]

open access: yes, 1974
Development of laboratory rock breakage techniques to relate energy and surface area produced by slow compression, drop hammer and stamp mill. A detailed study of laboratory rotary-percussive drilling in a wide range of rocks under different ...
Wootton, David
core   +7 more sources

The characterisation and analysis of in-situ and blasted block-size distributions and the blastability of rock masses. [PDF]

open access: yes, 1997
PhDIn this thesis, previous research on discontinuity geometry, in-situ block size distribution (IBSD), blasted block size distribution (BBSD), and blastability of rock mass is discussed.
Lu, Ping
core   +4 more sources

Simulation of the generation and propagation of blast induced shock waves [PDF]

open access: yes, 2003
Hybrid modelling of blast vibration uses the signal produced from a single hole test shot to simulate the vibration that would be produced by a full-scale production blast.
Yuill, Gavin John
core   +9 more sources

Effect of initiation pattern on rock damage and blasting seismic under multi-hole blasting

open access: yesGeomatics, Natural Hazards & Risk, 2023
In multi-hole blasting, the design of the initiation pattern is critical for the blasting effectiveness, but its effects on rock damage and blasting seismic are still unclear. This research focused on investigating the effect of initiation patterns under
Jiliang Kan   +6 more
doaj   +1 more source

Improvment of safety conditions of unstable rock slopes through the use of explosives [PDF]

open access: yes, 2008
The paper discusses operations aimed at creating a safer natural or man made rock slope by artificially inducing the displacement of unstable elements by blasting.
M. Casale   +8 more
core   +2 more sources

Rock-breaking mechanism and experimental analysis of confined blasting of borehole surrounding rock

open access: yesInternational Journal of Mining Science and Technology, 2017
The rock-breaking mechanism and effect of confined blasting were analysed by blasting and impact dynamic mechanics, fluid dynamic mechanics, fracture mechanics as well as blasting experiment.
Liu Changyou, Yang Jingxuan, Yu Bin
doaj   +1 more source

Study on Numerical Simulation of Geometric Elements of Blasting Funnel Based on PFC5.0

open access: yesShock and Vibration, 2021
Based on the particle flow code (PFC2D) within the discrete element method (DEM), the rock mass model was established according to the site rock conditions and the rock mass blasting was simulated by the explosive particle expansion method. The influence
Wenle Gao   +3 more
doaj   +1 more source

Burden movement in confined drift wall blasting tests studied at the LKAB Kiruna SLC mine

open access: yes, 2012
Blasting in SLC (sublevel caving) takes place in a semi-confined situation. Blasted material swells while the caved material compacts, and also, to a lesser extent, fills parts of the void volume of the production drift.
Ouchterlony, Finn   +4 more
core   +3 more sources

Effect of Specimen Placement on Model Rock Blasting [PDF]

open access: yes, 2021
Small-scale model blasting plays an important role in understanding mechanism of rock fragmentation by blasting and improving blast technology in rock and mining engineering.
Zhang, Zong-Xian   +2 more
core   +1 more source

Research on Blasting Technology in Large Cross Section Roadway Heading in Hard Rock at Depth [PDF]

open access: yes, 2021
According to the high hardness rock in Xinji 2nd Mine, the problem of low utilization of blasthole, an undesirable effect of blasting, and low circulating footage in the roadway construction has arisen.
Hu, Kunlun; Anhui University of Science & Technology   +3 more
core   +1 more source

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