Mudrush Dynamics In Underground Mining

Mudrush, mudflow, or mudpush are the most common terms describing uncontrolled ingress of assorted mixture of water and solids. Mudrush is the underground equivalent of surface debris flow. It can have different origins but produce the same results: injury, loss of life, damage to property, excess dilution, and production delays, or — in extreme cases

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Rapid Cave Design And Production Scheduling

rapid cave design

For early stage caving projects, there is usually a high degree of uncertainty in the input parameters that impact the mine design and strategy. When dealing with such uncertainty, it is better to quickly generate multiple designs and schedules that cover the likely range of key parameters rather than evaluating only a few or even

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Downstream Effects Of Cave Fragmentation

Since the 1990s, ‘mine-to-mill’ studies have evaluated the impact of blast fragmentation on downstream plant throughput. This was because crushing and grinding circuits (in particular, SAG mills) are sensitive to feed size and the amount of fines generated from blasting. Significant gains in grinding circuit efficiency could be achieved by controlling and optimising blast fragmentation.

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Open Pit To Underground Transition

SRK carried out a scoping study on an existing open pit operation (12 Mtpa) that is soon to be reaching a depth where the mine will need to transition to a large-scale underground mining method. The goal was to provide production continuity at a rate that will still be suitable to maximise use of the

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Guidelines On Caving Mining Methods: The Underlying Concepts

In 2000, International Caving Study (ICS) published a practical manual on block caving by Dr. Dennis Laubscher. This first comprehensive block caving publication was co-authored by several industry experts, including Dr. Alan Guest and Jarek Jakubec of SRK Consulting (Canada) Inc. Unfortunately, the distribution of this publication was not widely available. Meanwhile, the demand for

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Mass Mining Diamonds

Mass mining including block caving, incline caving, front caving, sub-level caving and sub-level retreat are the principal mining methods for primary diamond deposits worldwide. Diamonds have only been mined on an industrial scale within the past 150 years, mainly as open pit mines. Underground mining of those deposits was first implemented within the second half

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Data Uncertainty and Data Variability: How These Important Parameters Influence the Characterization of Block Caving Fragmentation

Particularly at the earlier stages of a rock engineering project, the lack of appropriate data manifests itself in the form of increased uncertainty and difficulties in characterizing rock mass variability in an objective manner. When mine-scale problems are considered, it is not possible to sample all of the rock mass, therefore a relative large number

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Cave Mining – Today’s Challenges

The industry perception is that sublevel caving is a “dirty mining method” (i.e. high dilution and low recovery). However, there were several successful sublevel cave mines executed in the past. The success of a sublevel cave mine is not by chance – they are engineered to perform. This talk will review some of the recent

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