Mammoet Delivers for BHP Jansen in Headframe Expansion Project

Why It Matters

The successful lift showcases Mammoet’s ability to manage ultra‑heavy modules in remote, constrained sites, cutting construction time and risk for BHP’s multi‑billion‑dollar potash project. It highlights the mining sector’s shift toward modular, heavy‑lift solutions for large‑scale expansions.

Key Takeaways

• Mammoet lifted a 2,090‑ton headframe, 1,300 t heavier than original
• Over 400 crane mats deployed to protect soft spring ground
• 80‑axle SPMT train moved new headframe in tight site constraints
• Prefabricated modules from Edmonton cut on‑site equipment and schedule

Pulse Analysis

BHP’s Jansen potash mine, slated to begin production in 2027, will become one of the world’s largest with an anticipated 8.5 million tonnes per year output. To meet this capacity, the mine’s headframe—a critical structure that transports personnel and material between surface and shaft—required a massive upgrade. Mammoet, partnering with construction firm Ledcor, leveraged modular construction techniques, fabricating the new 2,090‑ton headframe and a 60‑ton staircase tower in Edmonton before transporting them to the remote Saskatchewan site. This approach minimized on‑site heavy equipment, reduced labor exposure, and compressed the overall schedule.

The remote, agricultural landscape presented unique logistical hurdles. Soft spring ground threatened to exceed bearing limits, prompting Mammoet to conduct ground‑loading tests and mobilise more than 400 crane mats, as well as a 21‑metre shoring system for the shaft opening. Transporting the oversized modules required specially configured platform trailers with 22‑ and 20‑axle SPMT lines, while a double‑train SPMT configuration—totaling 80 axle lines—handled the final 2,090‑ton lift. Precise alignment was achieved using laser guides and strand jacks, ensuring the headframe docked perfectly within the existing staircase tower building.

Mammoet’s execution underscores a broader industry trend: heavy‑lift firms are increasingly essential partners for mining projects that demand rapid, low‑risk construction in challenging environments. By combining modular fabrication, advanced SPMT technology, and strategic global asset deployment—from Dubai to the UK—Mammoet reduced risk, accelerated delivery, and set a benchmark for future large‑scale mineral developments. As potash demand grows, such integrated solutions will likely become the standard for expanding remote mines worldwide.