The construction of TSF-4 at the Mimosa platinum mine highlights local expertise, with SRK Consulting overseeing advanced design and project management. Complying with global standards, the facility is engineered to address unique local challenges while empowering local companies. The strategic approach emphasizes safety, sustainability, and efficiency, showcasing the potential of local talent in significant mining infrastructure projects.
The construction of the TSF-4 tailings storage facility at Mimosa platinum mine, the second largest of its kind in Zimbabwe, illustrates the expertise of local firms in collaboration with SRK Consulting. SRK, appointed by the Mimosa Mining Company, completed the detailed design in May 2022, with civil works projected to continue until March 2024. SRK’s principal civil engineer, Andrew Robertshaw, asserted the project’s significance, highlighting its advanced technological design specifically for handling a substantial production rate over an extended deposition period.
The involvement of local companies was central to the client’s strategy. Notable contributors included Harare-based Forit Contracting and Kumba Resources Zimbabwe, alongside Paterson & Cooke Consulting Engineers for mechanical and electrical design. The TSF-4 was designed in accordance with the Global Industry Standard on Tailings Management and adapted to local conditions, addressing challenges such as talc content in tailings, which affects water settlement and drainage.
The TSF’s drainage system required advanced engineering due to its unique challenges. Robert McNeil from SRK emphasized the importance of a robust drainage network to manage water quickly from the tailings. The system channels water efficiently to a silt-trap dam, allowing for effective sedimentation while extending the operational lifespan of the facility by accommodating future needs in its design.
A complex drainage system has been established within the TSF, ensuring effective desaturation and monitoring. Internal paddocks facilitate the deposition of coarser materials, promoting drainage and mitigating the settling of fine materials that could obstruct main drains. The strategic placement of drains enhances the facility’s safety by lowering the risks of structural failure.
The design philosophy incorporates the duplication of critical infrastructure, exemplified by the installation of two penstock towers. This redundancy ensures operational continuity even during maintenance, allowing for efficient monitoring and management of water discharge. The laboratory established by Kumba Resources plays a pivotal role in quality control, rapidly testing materials to ensure project timelines and standards are met, showcasing local expertise and dedication throughout the construction phase.
The developmental approach adopted throughout the project involved close collaboration between all parties, resulting in enhanced local economic impact through responsible mining practices. Overall, the project not only reflects advancements in tailings management but also underscores the vital role of local expertise and collaboration in the successful realization of such a substantial undertaking.
The Mimosa TSF-4 construction underscores the importance of local expertise and collaboration in mining projects. With a focus on advanced design and stringent safety standards, the project aims to effectively handle unique challenges posed by local conditions. Furthermore, it illustrates the positive economic impact of empowering local firms and fostering a responsible mining culture that prioritizes sustainability and efficiency.
Original Source: africanminingmarket.com
