Coaltech Research Association

Technical Review of Thin Seam Clearance Systems for Rom Coal

M T Mnisi

Description

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Develop Methods to Prevent and Control Spontaneous Combustion Associated With Mining and Subsidence

2003

Fourth year of work at South African collieries, using borehole and infrared temperature monitoring, moisture testing and sealing trials, with control measures for opencast and underground operations.

What this report foundNo standard technique for predicting, controlling or extinguishing spontaneous combustion emerged, and the methods in use proved expensive and not routinely...

The Estimation of Greenhouse Gas Emissions from South African Surface and Abandoned Coal Mines

2012

Direct sampling across burning, burnt out and rehabilitated dumps at surface mines covering just over half of national surface production, scaled to a national emissions estimate.

What this report foundGas sampling on coal mine dumps found rehabilitation very effective at cutting emissions.

Detection of Old Workings, Sinkholes, Underground Fires and Acid Mine Pollution Using Geophysics and Airborne Thermal Infrared Imagery

Michael van Schoor

2002

Field trials at four collieries comparing ground and airborne geophysical methods, with case studies and an applications guideline for the Witbank and Highveld collieries.

What this report foundMicro-gravity, electrical resistivity and time domain electromagnetics located the boundary between old workings and virgin ground, but no ground technique...

Audit and Diagnostic Assessment of Productivity in Continuous Miner Sections

SGE Ashworth

2003

Mine level study of the human and social influences on continuous miner section output, using interviews, focus groups, observation and work study at participating collieries, for mine managers.

What this report foundSection performance was limited by the will and motivation of the workforce, not by equipment, layout or technical competence, all of which were found sound.

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