Pioneering progress: The future of rock engineering
- Details
- Created: Friday, 21 November 2025 14:01
- Written by K. Le Bron
It was our great pleasure to welcome delegates to AfriRock 2025, themed “Pioneering progress: The future of rock engineering,” held at the Sun City Hotel and Casino in Rustenburg from 19 to 23 July 2025. The conference was an absolutely resounding success. This prestigious international event brought together rock engineering professionals, researchers, and industry leaders from across the globe to share knowledge, exchange ideas, and showcase innovations that are shaping the future of mining both on the African continent and worldwide.
Two pre-conference workshops were held ahead of the formal proceedings—one focused on pillar design and the other on stress measurements—setting the tone for an engaging and technically rich event. We were honoured to host distinguished keynote speakers, each contributing unique expertise and insight. In addition to the keynote addresses, the symposium featured a robust programme of technical papers presented by industry professionals, consultants, and researchers. Technical slope stability papers published in the special edition of the SAIMM Journal (August 2025) were also presented at the conference, reinforcing the academic and practical depth of AfriRock 2025. Following the formal proceedings, technical visits to gold, platinum, diamond, and copper mines were organised, offering delegates the opportunity to experience innovative rock engineering practices in action. Complementing the technical programme, social events held at the end of each day provided valuable opportunities for attendees to network in an informal and engaging setting.
Conferences like AfriRock 2025 play a vital role in advancing our industry by fostering collaboration, professional growth, and the dissemination of cutting-edge technologies and best practices. The discussions and presentations throughout the event highlighted the importance of continuous learning, sustainable design, and the application of modern geotechnical methods to meet the evolving challenges faced by the mining environment.
We extend our sincere gratitude to everyone who contributed to making this conference a success—our keynote speakers, paper authors, reviewers, exhibitors, and sponsors. Their dedication, time, and expertise formed the foundation of this achievement. A special note of appreciation goes to the Technical Paper Review Committee and the Organising Committee, comprising members of the South African National Institute of Rock Engineering (SANIRE) and the Southern African Institute of Mining and Metallurgy (SAIMM), for their commitment and hard work in delivering an exceptional international conference.
K. Le Bron
Journal Comment
Rock Engineers and mine personnel frequently disagree on design aspects. These disagreements can lead to poor designs or failures. A number of large collapses have occurred in the bord and pillar mines and open cast mines in the Southern Africa region in the last two decades. Can we learn from the decision-making that led to these collapses and improve? Philosophy offers the opportunity to adopt a reflective learning approach.
Mining has historically been one of the most hazardous industries, a reality that has shaped the sector’s reputation for high risks and low margins of safety. Despite decades of progress in mechanisation, automation, improved ventilation, and the widespread adoption of personal protective equipment, accidents and occupational diseases remain serious and persistent concerns. Underground mining poses unique challenges because workers are confined to narrow spaces where they are exposed to unpredictable geological conditions, poor visibility, high temperatures, and dangerous gases. Beyond these acute risks are chronic health conditions that develop over time, including silicosis from prolonged inhalation of respirable dust, occupational hearing loss from exposure to high levels of noise, and musculoskeletal disorders resulting from heavy manual handling. The persistence of these problems highlights the complexity of mining safety and health, showing that technological improvements alone cannot eliminate them.
In the course of our engineering work on mining and metallurgical plants we are often called upon to evaluate the merits of different choices in process flowsheets, operating parameters and philosophies, raw material selection, and many others. The phenomenological complexity of the minerals industry usually means that each of these aspects is parameterised by a large number of variables, and there are also strong coupling effects between them – one changes a feed-rate setting here, and even though it fixes the immediate production problem over here, it also affects several other things over there in ways that one did not expect.
Just a couple of years ago the outgoing Chairman of the SAIMM Editorial Board, Dave Tudor, suggested that, as a previous metallurgical colleague, I should join the Board. Although I have been a member of the Institute for many years and was a previous Chairman of the Free State Branch, my knowledge of the management of the Institute was limited to attending some excellent schools and studying relevant journal papers.
Mining is big business. For many commodities, the orebodies are big and the best way to exploit them for maximum profit is on a large scale.
The mining industry is an exciting space, where the convergence of environmental stewardship, socio-economic responsibility, and technological innovation is reshaping the way we approach mine closure. As we navigate this complex landscape, the importance of mine closure planning is becoming more and more pronounced.
As the incoming President of SAIMM, I have been reflecting on my 34-year career in the mining industry and the lessons I have learned; lessons I can leverage to lead SAIMM and support the industry during my tenure. Writing this month’s journal comment provides an opportunity to share part one of some of these insights.
Mining has always been about more than just extracting minerals from the earth. It is about securing the future, balancing economic imperatives with environmental responsibility, technological innovation, and the well-being of those who power this industry. As we move forward, we must ask ourselves: are we truly mining with the future in mind?