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  • SAIMM
    Limiting the Influence of Extreme Grades in Ordinary Kriged Estimates

    "The management of outlier grades in positively skewed gold distributions is a contentious issue. Incorporating outliers in standard ordinary kriging (OK) estimation procedures in a way that honours t

    Apr 1, 2019

  • SAIMM
  • SAIMM
    Seismology And Slope Stability In Open Pit Mines

    By R A. Lynch, D A. Malovichko

    The implementation of routine real-time micro-seismic monitoring of open pit mine slopes has been discussed. Some examples of seismic arrays have been given, and a recommendation of suitable seismic

    Jan 1, 2006

  • SAIMM
    The effect of non-standard loading platen usage on point load index value of rocks

    By R. Altındag, D. Akbay

    The point load index is a simple, fast, and inexpensive method for determining rock strength and can be applied both in the field and in the laboratory. There are, however, some disadvantages and limi

    Nov 1, 2021

  • SAIMM
    Microscopic Analyses of Bushveld Complex Rocks under the Influence of High Temperatures

    By G. O. Oniyide, H. Yilmaz

    The South African platinum mines in the Bushveld Complex (BC) have unique features that distinguish them from the gold mines. They have a higher horizontal stress closer to the surface, lower occurren

    Jan 1, 2016

  • SAIMM
    Large-scale deformation in underground hard-rock mines

    By P. Turcotte, E. Karampinos, F. Mercier-Langevin

    In some underground hard-rock mines, squeezing compressive ground conditions are influenced by the presence of rock foliation and high stress. In these cases, the orientation of the foliation with res

    Jan 1, 2015

  • SAIMM
    Mine seismicity: prediction or forecasting? - Synopsis

    By S. M. Spottiswoode

    Much as one hopes to predict whether damaging seismicity might occur somewhere in the next shift, this is not possible at present. Recently, an analysis of seismicity at two mines has shown that a sma

    Jan 1, 2010

  • SAIMM
    Determination of Value at Risk for Long-term Production Planning in Open Pit Mines in the Presence of Price Uncertainty

    By M. Rahmanpour

    "Mine planning is a multidisciplinary procedure that aims to guarantee the profitability of a mining operation in changing and uncertain conditions. Mine plans are normally classified as long-term, in

    Jan 1, 2016

  • SAIMM
    Stochastic analysis of dig limit optimization using simulated annealing

    By M. S. Shishvan, J. R. van Duijvenbode

    The results of dig limit delineation in open pit mining are never truly optimized due to gaps in the underlying data, such as insufficient sampling. Aside from the data uncertainty, there is also an i

    Dec 13, 2022

  • SAIMM
    A New Methodology For The Analysis Of The Relationship Between Rock Brittleness Index And Drag Pick Cutting Efficiency

    By R. M. Goktan

    Rock brittleness plays an important role in the cutting action of picks on rock surfaces. It controls the ease with which cracks can propagate through the rocks. Although rock brittleness is known as

    Jan 1, 2005

  • SAIMM
    Controlled Solidification Of Ferrosilicon

    By L. Arnberg, E. Ott

    The microstructure of ferrosilicon is important since it controls the disintegration of the material during crushing and thus the generation of fines. Therefore a study of the microstructure formation

    Jan 1, 2004

  • SAIMM
    Hydraulic support instability mechanism and its control in a fully-mechanized steep coal seam working face with large mining height

    By F. T. Wang, Y. Yuan, S. H. Tu, X. G. Zhang

    Hydraulic support instability (HSI) is one of the most common causes of disasters in underground coal mining, posing a threat to the safety of mine workers and normal operation of the equipment. It is

    Jan 1, 2015

  • SAIMM
    Strategic Long Term Planning In Mining ? Synopsis (287252bf-313f-4c0f-98fd-28fa4c30c9b7)

    By G. L. Smith

    The fundamental challenge facing mineral and metal companies is how to create sustainable value while operating within mandated strategic bounds, identified constraints, and variable market and econom

    Jan 1, 2012

  • SAIMM
    Ultra-Deep Mining: The Increased Potential For Squeezing Conditions

    By D. F. Malan

    This study reviews the concept of squeezing (large time-dependent deformation) in rock and investigates the possibility of this phenomenon becoming more pronounced in the planned ultra-deep mines of t

    Jan 1, 1998

  • SAIMM
    Strategic Long Term Planning In Mining - Synopsis

    By G. L. Smith

    The fundamental challenge facing mineral and metal companies is how to create sustainable value while operating within mandated strategic bounds, identified constraints, and variable market and econom

    Jan 1, 2012

  • SAIMM
    Simulated Rockburst Experiment ? An Overview

    By T. O. Hagan

    A simulated rockburst experiment was conducted underground at a deep level gold mine. This was done by means of a large explosion detonated in solid rock close to a tunnel sidewall. The resultant shak

    Jan 1, 2001

  • SAIMM
    Use of Geostatistical Bayesian Updating to Integrate Airborne Radiometrics and Soil Geochemistry to Improve Mapping for Mineral Exploration

    By J. M. McKinley

    Mineral exploration programmes around the world use data from remote sensing, geophysics, and direct sampling. On a regional scale, the combination of airborne geophysics and ground-based geochemical

    Jan 1, 2014

  • SAIMM
    Shear-bond strength testing of thin spray-on liners - Synopsis

    By H. Yilmaz

    A testing method for assessing the shear-bond strength of thin spray-on liner (TSL) on rock substrate was developed at Wits University Rock Mechanics Laboratories. The gap between a 20 mm thick steel

    Jan 1, 2007

  • SAIMM
    FE Modelling Of Mining-Induced Energy Release And Storage Rates

    This paper describes a simple finite element (FE) modelling approach which leads to the computation of seismic energy release rate (ERR) and strain energy storage rate (ESR) which result from mining.

    Jan 1, 1999

  • SAIMM
    Application Of Nanofiltration In Metal Recovery

    By I. W. van der Merwe

    Recently, a new kind of filtration has emerged, namely nano-filtration (NF). It is a membrane-based process which exhibits totally unique separation characteristics for dissolved salts as well as for

    Jan 1, 1998