Development of a Risk-based Computer Database to Prioritise the Environmental Rehabilitation of Defunct and Abandoned Collieries
R1500,00
Description
Related Products
Demonstrate the efficiency of UAV-GPR for assessment of rehabilitation sites and detection of subsurface cavities
2023
Field trials at two South African collieries comparing drone mounted ground penetrating radar against ground based surveys, for measuring rehabilitation soil thickness and locating shallow voids. For rehabilitation teams.
What this report foundGround based radar mapped rehabilitation soil profiles well enough to replace much of the auger sampling normally needed, and a 100 MHz system picked out...
R1500,00
Ground based radar mapped rehabilitation soil profiles well enough to replace much of the auger sampling normally needed, and a 100 MHz system picked out anomalies at about 5 to 6 m depth that were likely old mining voids and related subsidence. Penetration below roughly 6 m needs lower frequencies, which cost resolution and require larger antennas.
Cleaning Near Moving Conveyors
2011
First phase of a two part investigation into conveyor cleaning practice at South African coal mines, covering the legal position, current mine practice and available machinery.
What this report foundConveyance legislation promulgated in 2008 and enforced soon after left the coal industry without a lawful way to clean near and under running conveyors.
R1500,00
Conveyance legislation promulgated in 2008 and enforced soon after left the coal industry without a lawful way to clean near and under running conveyors. The first phase defined the problem, recorded the cleaning practices mines already use successfully, and built a structured database of mechanised platform options worth pursuing. High risk areas remain drives, take ups, snub and tail pulleys and transfer points.