Extended Life-sustainability inside Refuge Bays in South African Collieries
Coaltech Research Project M2024-2
by Inus Labuschagne and Pieter du Preez | November 2024
R1500,00
Description
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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.