Coaltech Research Association

Evaluation of New and Emerging Mine Water Treatment Technologies

Dr Andre van Niekerk

by Dr Andre van Niekerk | April 2002

R1500,00

Description

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R1500,00

Can old bord-and-pillar workings be mapped from surface?

M van Schoor

2016

Desktop review updating two earlier assessments, weighing borehole scanning, robots and unmanned aerial platforms as routes to locating old workings ahead of opencast drilling and blasting.

What this report foundNo surface geophysical method can map individual bords and pillars at the depths typical of the Witbank coalfield, a limit the review attributed to physics...

R1500,00

R1500,00

M van Schoor

What this report found

No surface geophysical method can map individual bords and pillars at the depths typical of the Witbank coalfield, a limit the review attributed to physics rather than to technology, since the targets are small relative to their depth and conductive layers often lie above the seam. Borehole laser scanning remains the workable option, with sonar suited to flooded workings.

GJ de Korte

Project 12.2 – Land Rehabilitation Guideline for Surface Coal Mines

Four part reference covering planning, in-field implementation, monitoring and post-closure land management, written for mine planners, rehabilitation practitioners and regulators rather than as a site specification.

What this report foundSets out good practice for planning, implementing, monitoring and adaptively managing land rehabilitation at surface coal mines, with generic rehabilitation...

R1500,00

R1500,00

What this report found

Sets out good practice for planning, implementing, monitoring and adaptively managing land rehabilitation at surface coal mines, with generic rehabilitation objectives, implementation actions and suggested relinquishment criteria for each component. It updates guidance first issued in 1981 and revised in 2007, reflecting later changes to South African rehabilitation legislation.

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