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Studies of strength performance and deformation characteristic of layered rock
By P. He
Abstract This paper introduces the test results of dark-gray calcium-shale, discusses the infection of strength characteristic and deformation characteristic due to the angle between structural planes
Jan 1, 2003
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Modeling of plastic deformation and damage due to drying around a shaft in claystone
By J. F. Shao, G. Duveau, W. Z. Chen, O. Ozanam
In this paper, we present a sensitivity study for the numerical modelling of hydromechanical coupling around a shaft in partially saturated claystone. Two representative constitutive models have been
Jan 1, 2003
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Effect of discontinuity orientation and spacing on the blasting performance in some open cast mines of TKI•-Turkey
By H. A. Bilgin, A. Özgenog?lu, G. Kaçar
In this study, the influences of rock mass properties on the blasting performance in open cast mines are investigated. To this end, discontinuity spacings and discontinuity orientations are measured a
Jan 1, 2003
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Doppler depth of sump sensor ‘One shear, one shuttle-car load’
By B. S. Spottiswoode
Lack of visibility makes it difficult for continuous miner (CM) operators to judge the desired sump depth. The resulting inaccuracies have proven to lead to significant production losses. This problem
Sep 1, 2001
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Green Topics - Environmental Management In Mining: An International Perspective Of An Increasing Global Industry
By Janet M. Epps
The international climate regulating environmental management in mining is rapidly evolving through the combined influences of the development of international guidelines, resolutions, protocols, tr
Jan 1, 1996
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Parameter variability in the toppling stability of rock blocks
By J. Muralha
The paper presents the limit equilibrium equations for the analysis of toppling blocks on a rock slope. The safety conditions are assessed by a numeric procedure implemented in an Excel worksheet. The
Jan 1, 2003
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An engineering classification for rocks and rock masses
By T. Ramamurthy
ABSTRACT : Rock mass classifications RMR, Q and GSI do not suggest decreasing modulus ratio with the decrease in the quality of rock. These have been linked to joint factor, Jf , for better predictio
Jan 1, 2003
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Stability of large rock caverns excavated in a highly stressed region
By Y. -J. Park, K. -H. You, Y. -T. Choi, Lee. H. -W.
Many large caverns are being constructed in great depths in Korea mainly for the storage of oil and LPG. These caverns are mostly located near the port where rock conditions are reasonably good. In so
Jan 1, 2003
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Coupled Elasto-Plastic Model for Hydraulic Fracturing of Unconsolidated Formations
By I. Gil, J. -C. Roegiers
Abstract Hydraulic fracturing is a technology that has been utilized for more than 50 years in the oil industry. It was originally used for stimulating hard, brittle formations which typically exh
Jan 1, 2003
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Optimal planning of extracting works at the quarries of non-ferrous metallurgy of Kazakstan
By I. V. Lunkin, E. B. Muhamedzhanov, A. B. Begalinov, B. R. Rakishev
Almost all the ore deposits of ferrous, non-ferrous and rare metals of Kazakstan, are exploiting by the open-cast method, are the complex-structural, multi-component ones. Their rational working requi
Jan 1, 2003
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Tailings based pipe-support systems
By C. E. Hales
In an effort to improve efficiencies and reduce costs, AngloGold has embarked on a process to develop and deliver consistent, high quality, tailings based support or construction products to stopes an
Jan 1, 2003
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The link between the design process in rock engineering and the code of practice to combat rock fall and rockburst accidents
The paper deals with the importance of design, and of codes of practice, in ensuring safe working conditions in mines. The design principles involved in the design process are dealt with, and the imp
Jan 1, 2003
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Small scale laboratory experiments of boulders bouncing on granular slopes
By V. Labiouse, B. Heidenreich
The rebound phenomenon, which occurs during rockfalls when a rock block impacts with a slope surface, is influenced by several parameters related not only to the slope material but also to the block a
Jan 1, 2003
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Spotlight on the design of comminution process
By B. K. Loveday
The South African Institute of Mining and Metallurgy hosted a School on 'The Practical Design of Comminution Processes' at Megawatt Park (near Johannesburg) on 14th to 16th May, 1991 Dere
Jan 1, 1991
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The anisotropic nature of selected metamorphic rocks from Greece
By P. Marinos, G. Tsiambaos, H. Saroglou
Anisotropy is a characteristic of intact foliated metamorphic rocks (slates, gneisses, phyllites, schists). ?esting was used to establish the anisotropic behaviour of selected gneissic rocks. The effe
Jan 1, 2003
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Rope and mechanical testing to improve safety
By A. Peake
Background The CSIR Division of Mining Technology assumed responsibility for the operations of the Hoist Rope and Mechanical Test Laboratories at Cottesloe in April 1999. The laboratories were pr
Jan 1, 2003
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SMR Geomechanics classification: Application, experience and validation
By R. Romano, E. Montalar, J. B. Serón
The SMR geomechanics classification system (adaptation of RMR for slopes) is reviewed with data from 87 actual slopes in Valencia. In a research project, SMR has been applied by a GIS system, as a met
Jan 1, 2003
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The Optimisation Of Mining Method And Equipment.
INTRODUCTION This paper was originally presented at the Platinum Adding Value Conference, held at Sun City from the 4th to 6th October 2004. Narrow reef mining may not be applicable to the base m
Jan 1, 2005
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Rockbursts in the period of mining activity reduction in Ostrava-Karvina Coalfield
By V. Velicka, J. Ptacek, R. Snuparek, P. Konecny, G. Takla
Coal mining in Ostrava-Karvina coalfield is being accompanied by rockbursts. 82 rockbursts occurred within the period between 1990 and 2002. Natural and technological factors from these rockbursts wer
Jan 1, 2003
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Experiences with a methodology for determining pillar conditions
By H. Wagner
During the last few years a large number of pillars in different mines were investigated. Pillar conditions were evaluated using subjective, empirical, geophysical and numerical methods. A critical co
Jan 1, 2003