Use of Drone based Lidar technology at Olympic Dam Mine and initial Technical Applications

Authors: Woolmer, D; Jones, E; Taylor, J; Baylis, C; Kewe, D Download Paper Open access courtesy of:

This paper is hosted with the kind permission of the Universidad de Chile, Eighth International Conference & Exhibition on Mass Mining, 2020.

DOI https://doi.org/10.36487/ACG_repo/2063_38

Cite As:
Woolmer, D, Jones, E, Taylor, J, Baylis, C & Kewe, D 2020, 'Use of Drone based Lidar technology at Olympic Dam Mine and initial Technical Applications', in R Castro, F Báez & K Suzuki (eds), MassMin 2020: Proceedings of the Eighth International Conference & Exhibition on Mass Mining, University of Chile, Santiago, pp. 565-582, https://doi.org/10.36487/ACG_repo/2063_38



Abstract:
Olympic Dam Mine is a copper, uranium, gold and silver mine located 560 km north of Adelaide, South Australia. The orebody sits beneath approximately 300 metres of a surface, sedimentary sequence and extends to over 2,000 metres in some of the southern areas. The mining method utilized is sub-level open stoping (SLOS) with variable stope sizes and geometries depending on localised mineralization and ground conditions. Obtaining accurate stope survey data is a key part of managing material risks and planning inputs at Olympic Dam. Conventional stope survey methods are subject to issues such as resources required and variable data quality, leading to delays in the production cycle. This process has been improved by the implementation of Emesent’s Hovermap drone autonomy and mobile LiDAR mapping payload. This paper provides a 12-month review describing how Olympic Dam has implemented the technology. It explains the process of training underground personnel to become skilled pilots and flights and scans are scheduled into operations. The results of using this new technology are then compared to traditional survey methods in regards to implementation, output quality and safety. The paper then discusses in detail the applications that the Mine Technical Services Department (Survey, Geotechnical, Geology and Mine Scheduling) are using the data to improve knowledge of the mine and implement efficiencies. The additional data provided has been used by the Technical Services team to refine structural models and actively analyse future stope designs in new mining areas. The introduction of drones, big-data and point-clouds have all been challenges as they are outside the norm for the operation. However, once overcome the benefits from this type of technology and the data it generates is proving to be invaluable for improving safety, time efficiencies and understanding of the rock mass that is feeding into the downstream mining processes.

References: