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Browsing by Subject "Rock mass behaviour"

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Develop a quantitative understanding of rockmass behaviour near excavations in deep mines, part 1

Author: Napier, JAL ; Hildyard, MW ; Kuijpers, JS ; Daehnke, A ; Sellers, EF ; Malan, F ; Siebrits, E ; Ozbay, MU ; Dede, T ; Turner, PA Date: Dec 1995 Control of the rock mass deformation near deep level stopes and the avoidance of damaging incidents of violent rock failure require a fundamental understanding of rock failure mechanisms. Research work to gain this understanding has been ... Read more
Develop a quantitative understanding of rockmass behaviour near excavations in deep mines, part 2

Author: Napier, JAL ; Hildyard, MW ; Kuijpers, JS ; Daehnke, A ; Sellers, EF ; Malan, F ; Siebrits, E ; Ozbay, MU ; Dede, T ; Turner, PA Date: Dec 1995 Modelling of failure processes in rock is an essential adjustment to the analysis of observations of underground rock fracturing. The identification of mechanisms of deformation represents a basic step in understanding of rock mass behaviour ... Read more
Geotechnical classification of deep and ultra-deep Witwatersrand mining areas, South Africa

Author: Schweitzer, JK ; Johnson, RA Date: Jun 1997 As depth of mining increases, so the production costs of the aurifereous Witwatersrand deposits are continuously increasing, with some mines already mining at depths exceeding 3500 m. Health and safety aspects are, simultaneously, gaining in ... Read more
Improvement of worker safety through the investigation of the site response to rockbursts

Author: Hagan, TO ; Milev, A ; Spottiswoode, SM ; Vakalisa, B ; Reddy, N Date: Dec 1998 The objective of this investigation is to improve worker safety through a better understanding of mine excavation response to rockbursts. The improved understanding should lead to improved mine layout and support design. The project is ... Read more
Methodology for the finding of geotechnical areas within the South African gold and platinum.

Author: Goler, G ; Quaye, GB ; Jager, AJ ; Schweitzer, JK ; Grodner, M ; Reddy, N ; Andersen, L ; Milev, A ; Wallmach, T Date: Dec 1998 Variable rock mass behaviour is present in Witwatersrand and Bushveld mining districts. Geotechnical classification of the stoping environments is therefore essential. However, a sound methodology that classifies these environments had not ... Read more
Time-dependent behaviour of deep level tabular excavations in hard rock

Author: Malan, DF Date: Apr 1999 Although hard rock is not usually associated with large creep deformation, significant time-dependent behaviour is observed in the tabular excavations of the South African gold mines. Time-dependent closure data was collected in stopes of the ... Read more

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Browsing by Subject "Rock mass behaviour"

Browsing by Subject "Rock mass behaviour"

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