Acoustic device for recording and tracking rock hazards on the mining face

Authors: Greeff, H; Pienaar, M; Hanekom, J Download Paper Open access courtesy of:

DOI https://doi.org/10.36487/ACG_repo/2465_51

Cite As:
Greeff, H, Pienaar, M & Hanekom, J 2024, 'Acoustic device for recording and tracking rock hazards on the mining face', in P Andrieux & D Cumming-Potvin (eds), Deep Mining 2024: Proceedings of the 10th International Conference on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 817-830, https://doi.org/10.36487/ACG_repo/2465_51



Abstract:
In the pursuit of enhancing personnel safety and operational efficiency in underground mining, this project introduces an innovative acoustic device for recording and tracking rock hazards on the mining face. This system combines advanced acoustic analysis with an ultra-wideband (UWB) location system to interpret sounds produced during rock mass sounding and scaling. The location system is georeferenced to the mine’s local coordinate system using available survey pegs. By integrating these technologies, each acoustic data point includes a spatial XYZ coordinate which facilitates tracking of loose rock locations throughout the mining excavation process. This dual-sensory approach advances previous methods by leveraging the innovation of acoustic technology and tailoring algorithms to specific rock types, enhanced by the tracking function so that rock hazards encountered underground can be mapped and communicated to the operational team. The collected data offers a systematic approach to hazard identification and enhances mine designs and operational strategies by providing insights into the dynamic response of the rock mass during excavation under different mining conditions. This project offers a new approach to proactive hazard management, potentially transforming how mines are operated and mine designs monitored to ensure safety and efficiency.

Keywords: acoustic analysis, UWB location, rock hazard detection, mining safety, algorithm development

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