ALROSA Embarks on a Global Quest for Safe Mir Diamond Mine Resumption

In a bold and proactive move underscoring its unwavering commitment to both operational safety and the long-term viability of its assets, ALROSA, a globally recognized leader in diamond mining, has officially announced a comprehensive international design competition. This strategic initiative aims to source the most innovative, robust, and, critically, completely safe technical solutions for the resumption of underground diamond mining activities at its historically significant Mir deposit. Operations at this vital asset, a cornerstone of ALROSA’s production, have been suspended since a major flooding incident occurred in August. This unforeseen event highlighted the urgent imperative for a thoroughly secure and meticulously engineered path forward.

The competition extends a broad invitation to a diverse spectrum of expertise, specifically targeting leading Russian and international scientific and engineering communities. Participants will face the formidable challenge of developing groundbreaking and impeccably detailed technical designs. These designs must not only demonstrate exceptional operational efficiency but, more importantly, guarantee the absolute safety and well-being of all personnel and future underground operations. ALROSA has set an ambitious yet determined timeline, aiming to finalize its overarching vision for the project by the third quarter of 2018. This critical decision will be meticulously informed and shaped by the innovative insights, practical solutions, and detailed proposals presented by the competition’s esteemed participants.

The Mir Deposit: A Legacy of Riches and Present-Day Challenges

The Mir pipe, located in the Mirny district of the Sakha Republic (Yakutia), Russia, holds immense historical, geological, and economic significance within the global diamond industry. For several decades, the Mir deposit has been an indispensable component of ALROSA’s formidable production portfolio, consistently contributing a substantial volume of high-quality diamonds to the international market. Initially exploited as a colossal open-pit mine, the operation successfully transitioned to underground mining to effectively access the deeper, highly valuable diamond reserves that lay beneath. This transition represented a monumental engineering triumph, pushing the boundaries of conventional mining techniques amidst inherently challenging geological and climatic conditions.

However, the intrinsic complexities associated with deep underground mining, particularly in regions characterized by vast permafrost and intricate hydrogeological conditions, present continuous and evolving challenges. The August flooding incident served as a potent and sobering reminder of these inherent difficulties. The event prompted ALROSA to re-evaluate its strategies and unequivocally prioritize safety above all other considerations in its concerted efforts to bring the mine back into operation. The incident not only caused a temporary disruption in production but also underscored the critical need to comprehensively re-assess, enhance, and implement state-of-the-art safety protocols and infrastructure. This proactive approach aims to prevent any future recurrence and, most importantly, safeguard its dedicated workforce, ensuring a sustainable and secure future for the Mir deposit.

Paving the Way Forward: A Collaborative Research Initiative and Strategic Approaches

The announcement of the international design competition is a direct and logical progression stemming from a highly productive and insightful research and technology seminar. This pivotal gathering was recently hosted at the esteemed Yakutniproalmaz Institute, a leading research facility in the region. The seminar served as a crucial forum, bringing together a wide array of experts and specialists from various fields to collectively deliberate on the formidable task of safely and effectively re-establishing mining operations at Mir. During this intensive and collaborative seminar, participants meticulously identified, analyzed, and ultimately outlined three distinct yet promising focus areas, or strategic approaches, for the development of the required safe technical solutions. These three major directions, which were rigorously refined through the presentation of 16 detailed technical reports encompassing more than 30 possible approaches and operational options, now form the foundational framework and guiding principles for the upcoming global design competition.

Three Pillars of Restoration: Strategic Approaches for Mir Mine Rehabilitation

The seminar’s output highlighted the multi-faceted nature of the challenge at Mir, proposing distinct yet comprehensive solutions. Each of these three approaches presents a unique set of advantages, inherent engineering complexities, and potential drawbacks, thereby demanding rigorous analysis, innovative thinking, and robust problem-solving from all participants in the forthcoming competition.

1. Approach 1: Restoration and Reinforcement of Existing Infrastructure

   This initial strategic approach champions the restoration, extensive rehabilitation, and critical reinforcement of the current network of underground openings. This includes the existing main shafts, access drifts, and pit bottom roadways. The fundamental principle underpinning this strategy is to maximize the efficient utilization of the substantial existing surface complex infrastructure, which represents a significant prior capital investment. Potential advantages of this strategy could encompass comparatively lower initial capital expenditure and a potentially faster timeline for re-entry into the mine, given that much of the foundational groundwork is already established. However, this approach would necessitate an exhaustive program of structural integrity assessments, extensive reinforcement work, and the implementation of an exceptionally sophisticated and robust water management system. Such a system would be specifically designed to effectively counteract the very hydrogeological challenges that contributed to the initial operational suspension. Diligently addressing legacy water ingress points and ensuring the long-term geotechnical stability of all existing structures would be of paramount importance to guaranteeing both operational safety and sustained longevity.

2. Approach 2: Construction of New Shafts and an Integrated Drainage System

   The second, more ambitious and long-term oriented approach, advocates for the construction of entirely new, purpose-built shafts. These new shafts would be engineered to reach the full explored depth of the rich diamond reserves within the Mir pipe. This strategy places a significant priority on the efficient and safe mining of the deeper levels, which are known to contain particularly valuable ore bodies. Crucially, this approach integrates the simultaneous design and creation of a highly sophisticated, comprehensive, and integrated drainage system for the entire deposit. This advanced system would feature a dedicated drainage shaft and an array of strategically placed dewatering wells, all meticulously engineered to proactively manage, control, and efficiently remove groundwater, thereby significantly mitigating the risk of any future catastrophic flooding incidents. While this option undoubtedly demands substantial capital investment and a more extended construction phase, it offers the compelling prospect of a more resilient, tailor-made infrastructure, optimally designed for long-term, deep underground mining operations and inherently enhanced safety protocols from its inception.

3. Approach 3: Open-Pit Cutback with Subsequent Underground Mining Transition

   The third strategic direction proposes a more radical re-evaluation and modification of the mine’s existing surface profile. This involves the extensive cutback of the walls of the Mir open-pit mine, a colossal undertaking that would aim to create direct and unimpeded access to its bottom. The immediate and primary goal of this massive cutback operation would be to facilitate the establishment of an exceptionally effective and high-capacity water pumping system directly from the base of the open pit. This would provide a clearer, more direct, and potentially simpler path to manage the pervasive water issues currently affecting the mine. Following this initial phase of extensive dewatering, ground stabilization, and pit wall re-profiling, the underground mining operations would then commence, transitioning from the open-pit access. This approach seeks to strategically leverage the existing open-pit for initial large-scale water management, potentially simplifying the immediate dewatering challenge. However, it also introduces significant environmental considerations, demands large-scale earthmoving operations, and presents the complex engineering challenge of managing the long-term stability of the extensively re-profiled pit walls before a seamless transition to safe and efficient underground exploitation.

Participants in ALROSA’s forthcoming international design competition are therefore expected to undertake a detailed, rigorous, and comprehensive feasibility study of one of these three outlined strategic approaches. Their final technical design submission must not only be demonstrably innovative, technically sound, and economically viable but, most critically, must provide an unimpeachable and verifiable guarantee of absolute safety for all personnel, equipment, and future mining operations. This includes the seamless integration of advanced hydrological management systems, robust geotechnical stability measures, and contingency planning for unforeseen events.

A Coalition of Expertise: Insights from the Preparatory Seminar

The preparatory research and technology seminar served as a powerful testament to ALROSA’s deep-rooted commitment to collaborative problem-solving and leveraging diverse knowledge. The event successfully brought together an impressive assembly of approximately 70 highly specialized professionals. This exceptionally diverse group represented a broad spectrum of ALROSA’s internal structural subdivisions, alongside crucial external expert organizations. Each participant contributed invaluable insights derived from their specific areas of expertise, fostering a rich environment for interdisciplinary discussion and strategic planning.

Key attendees included highly experienced specialists from the Mirny Mine Construction Trust, whose practical, hands-on experience in the arduous and complex construction of underground mines is unequivocally indispensable. Representatives from the Mirny and Udachny Mining and Processing Divisions provided critical operational perspectives, drawing from their day-to-day management of large-scale diamond extraction. Experts from the Vilyuiskaya and Mirny Exploration Expeditions contributed vital geological and invaluable resource assessment knowledge, crucial for understanding the subsurface conditions. The Yakutniproalmaz Institute, acting as the host institution and a leading research body in mineral extraction, played a pivotal role in facilitating the exchange of cutting-edge scientific and technological advancements. Further significant contributions came from NTC NOVOTEK, an organization renowned for its innovative technological solutions applicable to the mining sector.

Significantly, the seminar also greatly benefited from the invaluable presence and wisdom of former ALROSA specialists. These individuals, possessing extensive historical experience and a profound, firsthand acquaintance with the unique and challenging problems inherent in underground construction and mining within the specific geological and climatic conditions of the region, offered unparalleled institutional knowledge, historical context, and practical solutions. Their contributions proved instrumental in accurately framing the current challenges and identifying the most promising potential solutions for the Mir deposit’s future.

ALROSA’s Leadership Vision: Prioritizing Safety Through Global Collaboration

Sergey Ivanov, the esteemed President of ALROSA, articulated the company’s core philosophy and unwavering resolve regarding the Mir deposit’s future with remarkable clarity and conviction. “Our core task is to ensure the complete safety of operations at Mir deposit,” Ivanov emphatically stated, leaving no ambiguity about the paramount importance of this objective. He continued, “therefore we need a perfect design solution. We will involve the entire leading scientific community, both Russian and international experts, in the development of the underground mine restoration project. We expect to receive the vision of the future project in the III quarter of next year.”

This definitive statement encapsulates ALROSA’s strategic imperative: to proactively leverage the brightest minds and most advanced engineering expertise from across the globe. The goal is to engineer a comprehensive solution that not only restores the mine’s crucial productivity but also concurrently sets an unprecedented new benchmark for safety and operational excellence within complex underground mining environments. The deliberate decision to involve international experts unequivocally underscores ALROSA’s progressive approach to tap into worldwide best practices, cutting-edge technologies, and diverse perspectives. This ensures that the chosen solution will not only be highly effective and sustainable but also rigorously aligned with the highest global standards for mine safety, environmental protection, and responsible resource stewardship.

The Road Ahead: Setting New Standards in Responsible Diamond Mining

The launch of the international design competition for the Mir deposit transcends a mere search for an engineering blueprint; it stands as a profound declaration of ALROSA’s enduring commitment to responsible, sustainable, and innovative mining practices. The successful, meticulously planned resumption of operations at Mir, executed under a framework that is both impeccably designed and unequivocally safe, would represent a monumental achievement for the company and the broader mining industry. Such an accomplishment would not only secure a significant and vital portion of ALROSA’s future diamond production but also powerfully reaffirm its leadership position in operational innovation, engineering excellence, and ethical resource extraction within the highly competitive global diamond industry.

The outcomes of this pivotal competition, followed by the rigorous implementation of the selected design, will undoubtedly be observed with keen interest and scrutiny by the entire international mining community. They hold the significant potential to redefine what is technologically and ethically achievable in challenging underground conditions, particularly concerning advanced water management systems, complex structural stability, and proactive risk mitigation. As ALROSA diligently progresses towards finalizing its comprehensive vision by the third quarter of 2018, the global mining community eagerly anticipates a solution that profoundly embodies resilience, ingenious engineering, and an unwavering, paramount dedication to human safety and environmental integrity.

News Source: gjepc.org