Stability Assessment of a Railway Tunnel Using the Sub Surface Profiler
The Veresk arch bridge, along with multiple tunnels, was constructed in 1936 as part of a railway line. The bridge is located in a narrow valley surrounded by steep, rugged mountain terrain. The valley and surrounding slopes are the result of erosion, where rivers and glaciers have carved deep valleys through the rock over millions […]
Identifying the “unidentifiable” contributors to large-scale instability experienced at a UG2 mine along the Western Limb of the Bushveld Complex
Abstract The geology intersected by a mining excavation dictate the rockmass condition and stability of the excavation. The general geologic structure of the UG2 Reef horizon with regard to rock type, jointing and potential parting planes are well understood. Mining layouts and support applications are applied to control the anticipated rockmass behaviour. Case studies conducted […]
Using GPR to access the extent of face pre-conditioning through mesh
For deep level hard rock mines, tailored preconditioning techniques have been used to control face bursts for safer mining in seismically active and therefore hazardous areas. Preconditioning is tailored to the rock mass and mining conditions. GPR is a useful tool to determine if completed preconditioning had been effective at fracturing behind the face and […]
Bone maybe from man
Article as published in Eikestad News by Angelo Julies. Using technology, Cloetesville police have finally made a breakthrough in the investigation into a man who was reported missing earlier this year. Police discovered and exhumed the bones of an unknown person on Libertas Farm last Tuesday (May 24) using Reutech Radar Systems technology after trying […]
SSP Data Analysis Version 1.4
Identifying sub surface fractures
Overview of quarry site Side view of fractures identified by SPP The SSP was used to identify sub surface fractures (cracks) hidden within a block of granite. The sensor which was deployed in minutes, was rolled along the survey line with a length of roughly 10 meters orientated downwards. The area of interest starts at […]
Identifying low angle features
Feature dipping at an angle of 35 degrees into hanging wall Cabling encountered along survey line The SSP was used to identify a feature dipping at an angle of 35 degrees into the hanging wall. There was very little infill and the survey line was non-uniform with various sharp brows. Cabling was also encountered along […]
Identifying a diagonal borehole in underground hanging wall
Borehole entering the hanging wall Leader seam emerging from hanging wall The SSP was applied at an underground mine where the specific survey site was prepared beforehand. A diagonal borehole was drilled into the handing wall providing a specific target gradually moving deeper into the rock. The SSP was deployed in minutes and results where […]
Identifying adequate mine face pre conditioning
Scanning at Site 1 Scanning at Site 2 The SSP was applied at an underground gold mine to determine effective mine face pre conditioning at two separate sites. The SSP was deployed in minutes and the results were available in real time. The scans are made using the same hardware and processing settings so that […]