Mining Mirror May 2019 | Page 36

Mining in focus Wits DigiMine life-size mining stope panel. Late last year, the CSIR showcased their latest mining technologies. Among the technologies displayed was a robot platform equipped with safety inspection sensors to enter mines during safety periods. Known as ‘Monster’, the robot aims to assess and identify risks for underground mines. Principal engineer, Dr Shaniel Davrajh, highlighted the importance of using robotic technologies in the mines. He told Mining Mirror that using these technologies could assist in reaching some of the areas that are not accessible during an incident. “A robot equipped with safety inspection sensors will enter the mine during a safety period. It becomes very difficult and dangerous for humans to enter into the mine after an incident,” he said. Ground Penetrating Radar (GPR), which is being researched as one of the South African Mining Extraction, Research, Development and Innovation (SAMERDI) Advanced Orebody Knowledge technologies, was also displayed. This technology contributes to the zero-harm objective, by enabling miners to visualise potentially hazardous geological structures in the hanging wall that could lead to falls-of- ground. “Managing health and safety risk in a mine requires real-time monitoring and quantification of the underground hazards and the exposure of personnel and equipment to such hazards,” comments principal geophysicist, Dr Michael van Schoor. The CSIR also developed a pedestrian detection system. The system uses a range sensor to determine the distance to each identified person and tracks each person to determine if and when a collision is likely to occur. Another technology that was exhibited is an early-warning and monitoring system called ‘RockPulse’. RockPulse will assist mines with listening to raw micro-seismicity; extracting micro-fracture features, and analysing the resulting series of features to detect large instabilities taking place in the rock mass in time. as tracking and positioning of personnel and equipment within above-ground and below-ground mining operations. Sandvik monitoring a mining operation. Data and information management will become increasingly important in the future. Considering the innovations, R&D, and the progress made in terms of underground mining technology, it is safe to say the future looks promising. “We wouldn’t be allocating our engineering resources to develop new and integrated technologies if we didn’t feel it could improve the mining environment and overall safety of miners,” says Van Niekerk. He adds that MineARC has plans to launch more products and technologies in the next few months — related to improving mine safety over the next few years. “These are all related to our GuardIAN Network System, and include site-wide, real-time gas monitoring, personnel tracking and guidance, and of course, improvements to our own refuge chamber technology,” he says. [34] MINING MIRROR MAY 2019 The future Where it will all happen in future: in the control room. www.miningmirror.co.za