The Mine Ventilation Society of Zimbabwe (MVSZ) says that early integration of ventilation planning into Life of Mine (LoM) strategies is a critical lever for cost control, safety, and operational stability, as companies are reportedly losing millions by treating ventilation as an afterthought, Mining Zimbabwe can report.
By Ryan Chigoche
Despite its importance, ventilation remains one of the most under-prioritised aspects of mine design, often only receiving serious attention when underground conditions begin to deteriorate. This delay in planning can compromise both operational efficiency and worker safety, highlighting the need for proactive, long-term ventilation strategies.
Across many operations, airflow constraints, rising heat loads, and regulatory pressure tend to trigger reactive interventions rather than planned solutions.
What follows is a familiar cycle of rushed upgrades, production disruptions, and avoidable costs, a pattern that continues to expose the gap between mine planning and execution.
It is this disconnect that is now drawing increased attention within the industry.
In an interview with Mining Zimbabwe, Mine Ventilation Society of Zimbabwe President Dr Tonderai Chikande said a fundamental shift in mindset is required.
“Early Life of Mine ventilation planning is one of the most powerful cost-avoidance and risk-mitigation tools available to mining companies,” he said, adding that it repositions ventilation “from a compliance obligation into a value-preserving strategy.”
At the centre of this shift is the recognition that delayed ventilation planning comes at a cost—often a significant one.
When ventilation is not embedded early in mine design, operations are eventually forced to respond under pressure as production expands or workings deepen, leaving little room for efficient or cost-effective solutions.
“When ventilation constraints are not embedded in early mine design, companies often encounter situations where infrastructure must be retrofitted, with production slowed due to airflow limitations,” Chikande added.
In large-scale mechanised operations, such interventions can run into millions of dollars while disrupting carefully planned production schedules.
Conventional mines face a more gradual but equally limiting challenge, where airflow capacity begins to lag behind development, creating bottlenecks over time. In artisanal settings, the absence of early ventilation planning can escalate further, resulting in unsafe conditions that halt operations altogether.
Beyond simply avoiding these setbacks, early ventilation planning also plays a direct role in strengthening project economics.
By incorporating ventilation parameters into long-term scheduling, mines are better able to align capital investment with production growth, improving overall project value and reducing inefficiencies.
“Rather than over-capitalising early or reacting late, companies can phase infrastructure logically in line with production ramps,” he said.
This alignment becomes increasingly important as operations scale. In mechanised underground mines, ventilation demand rises in step with diesel equipment fleets, while in conventional operations, production targets ultimately depend on whether sufficient airflow can be delivered consistently and sustainably.
At the same time, the consequences of poor ventilation extend well beyond financial costs. Disruptions to airflow can quickly translate into production stoppages, regulatory intervention, and increased safety exposure, placing additional strain on operations and management alike.
By contrast, mines that invest in ventilation planning early are better positioned to manage these risks. Through the use of ventilation modelling, simulation tools, and coordinated input across disciplines, they can reduce uncertainty and avoid the need for emergency redesigns later in the mine life.
“Stability is particularly important in automated environments, where airflow conditions affect both human and machine performance,” Chikande noted.
This more proactive approach is also gradually reshaping how mines are planned and managed. Ventilation is no longer treated in isolation, but as part of an integrated system that brings together mine planners, ventilation engineers, rock engineering teams, and safety professionals, ensuring that it evolves in step with the mine itself.
For the MVSZ, this shift carries particular significance for Zimbabwe’s evolving mining landscape.
As more small-scale and emerging operations move towards formalisation and growth, embedding ventilation planning early could prove decisive in avoiding future safety and operational challenges.
Introducing simplified ventilation planning frameworks at the licensing stage, he said, could go a long way in reducing long-term safety incidents while supporting more sustainable production.
As the sector continues to move towards deeper, more mechanised, and capital-intensive operations, the cost of treating ventilation as an afterthought is becoming increasingly difficult to justify. In that context, early Life of Mine ventilation planning is no longer just a technical consideration, but a strategic necessity for long-term mine performance.
