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Browsing by Author "Milev, AM"

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Effect of the rock properties on mining-induced seismicity around the Ventersdorp contact reef, Witwatersrand basin, South Africa

Author: Milev, AM ; Spottiswoode, SM Date: Jan 2002 The Ventersdorp Contact Reef is characterised by a variety of different rock types that are found above and below the reef in different mining areas. These variations in the host rock type have been classified into six main geotechnical areas. ... Read more
Establishment of SATREPS experimental sites in South African gold mines to monitor phenomena associated with earthquake nucleation and rupture

Author: Durrheim, RJ ; Ogasawara, H ; Nakatani, M ; Yabe, Y ; Kawakata, H ; Naoi, M ; Ward, AK ; Murphy, SK ; Wienand, J ; Lenegan, P ; Milev, AM ; Murakami, O ; Yoshimitsu, N ; Kgarume, Thabang E ; Cichowicz, A Date: Mar 2012 Mining-induced earthquakes pose a risk to workers in deep mines, while natural earthquakes pose a risk to everywhere, but especially near plate boundaries. A five year Japanese–South African collaborative project entitled ‘Observational studies ... Read more
Improvement of worker safety through the investigation of the site response to rockbursts.

Author: Durrheim, RJ ; Milev, AM ; Spottiswoode, SM ; Vakalisa, B Date: Dec 1997 Rockbursts are a major hazard in South African deep-level gold mines. The severity of damage due to a seismic event often varies greatly over small distances. The goal of this project is to discover the reasons for this variation in the ... Read more
Improvement of worker safety through the investigation of the site response to rockbursts.

Author: Hagan, TO ; Milev, AM ; 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 a ... Read more
Influence of regional support systems (pillars and backfill) on local areas and internal support requirements adjacent to that regional support.

Author: Squelch, AP ; Milev, AM ; Acheampong, E ; Dlokweni, T ; Janse van Rensburg, A ; Watson, BP Date: Nov 2001 The general influence of regional support on local stope conditions is not always well understood and a number of anomalous conditions, both positive and negative, have been reported in the vicinity of regional supports. Mining in similar ... Read more
Meaningful use of peak particle velocities at excavation surfaces for the optimisation of the rockburst criteria for tunnels and stopes.

Author: Milev, AM ; Spottiswoode, SM ; Noble, BR ; Linzer, LM ; Van Zyl, M ; Daehnke, A ; Acheampong, E Date: Mar 2002 The aim of this project is optimization of rockburst support systems by the systematic evaluation and quantification of the peak particle velocity recorded underground. Read more
Methodology and computer program for applying improved, inelastic ERR for the design of mine layouts on planar reefs.

Author: Spottiswoode, SM ; Milev, AM Date: Aug 2002 Use of the mine layout design criteria of ERR (Energy Release Rate), APS (Average Pillar Stress) and ESS (Excess Shear Stress) have not provided a good control of seismicity. It has become apparent that more complex models of rock mass behaviour ... Read more
Mine-induced seismicity at East-Rand proprietary mines

Author: Milev, AM ; Spottiswoode, SM ; Noble, KR Date: Sep 1995 Mining results in seismic activity of varying intensity, from small micro seismic events to larger seismic events, often associated with significant seismic induced damages. This work deals with the understanding of the present seismicity in ... Read more
Observational studies in South African mines to mitigate seismic risks: a mid-project progress report

Author: Durrheim, RJ ; Ogasawara, H ; Nakatani, M ; Yabe, Y ; Milev, AM ; Cichowicz, A ; Kawakata, H ; Moriya, H ; Naoi, M ; Kgarume, Thabang E ; Murakami, O Date: Oct 2013 Mining-induced earthquakes pose a risk to workers in deep mines, while natural earthquakes pose a risk to people living close to plate boundaries and even in stable continental regions. A 5-year Japan-SA collaborative project "Observational ... Read more
Observational studies in South African mines to mitigate seismic risks: a mid-project progress report

Author: Durrheim, RJ ; Ogasawara, H ; Nakatani, M ; Yabe, Y ; Milev, AM ; Cichowicz, A ; Kawakata, H ; Moriya, H ; Naoi, M ; Kgarume, Thabang E ; Murakami, O Date: Oct 2013 Mining-induced earthquakes pose a risk to workers in deep mines, while natural earthquakes pose a risk to people living close to plate boundaries and even in stable continental regions. A 5-year Japan-SA collaborative project "Observational ... Read more
Observational studies to mitigate seismic risks in mines: a new Japanese-South African collaborative research project

Author: Durrheim, RJ ; Ogasawara, H ; Nakatani, M ; Yabe, Y ; Milev, AM ; Cichowicz, A ; Kawakata, H ; Moriya, H Date: Oct 2010 Mining-induced earthquakes pose a risk to workers in deep South African mines, while natural earthquakes pose a risk to people living close to plate boundaries. The authors introduce a 5-year Japanese - South African collaborative project ... Read more
Performance of various types of containment support under quasi-static and dynamic loading conditions, Part I.

Author: Kuijpers, JS ; Milev, AM ; Jager, AJ ; Acheampong, E Date: May 2002 Seismicity causes the most severe loading conditions for tunnel support systems in deep-level South African gold mines. The design of such support systems should therefore incorporate the potential effect of seismicity on support requirements. ... Read more
Study of mine stability using records of ground tilting

Author: Spottiswoode, SM ; Milev, AM Date: Jun 2006 Tilt data are being used to study the behaviour of deep-level mine layouts, particularly the performance of dip pillar systems. The tilt data are being recorded by a triggered seismic recording system. The triggered data showed velocity and ... Read more
Use of waveform similarity to define planes of mining-induced seismic events

Author: Spottiswoode, SM ; Milev, AM Date: 15 Apr 1998 Mining-induced seismicity results from a complex interaction of ambient and mining-induced stresses acting on a rock mass that has been intersected by a variety of geological weaknesses and discontinuities. A major challenge is to improve ... Read more

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Browsing by Author "Milev, AM"

Browsing by Author "Milev, AM"

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