Are you planning a microtunnelling project that requires precise control, consistent jacking pressures, and stable fluid performance? Erritt Construction faced these challenges when completing a 726‑metre, 1200 mm‑diameter tunnel in Oakville, Ontario, one of the longest drives of its kind in North America. Maintaining stability in chemically impacted ground, managing fluid returns, and controlling pH demanded a high-performance drilling fluid program.
Erritt Construction implemented Di-Corp’s customized drilling fluid program, including Wyo-Ben Micro-Gel™, Hyperdrill 247, Calcium Nitrate, and Citric Acid. The fluids maintained consistent jacking pressures, ensured stable conditions through chemically impacted ground, and allowed clear water to be safely recycled, enabling the team to complete the full 726-metre tunnel efficiently.
If you’re facing similar microtunnelling challenges, downloading this case study will show you:
- How Di-Corp fluids maintain consistent jacking pressures on long drives.
- Why engineered rheology and chemical compatibility are critical for tunnel stability.
- How Erritt Construction completed one of North America’s longest microtunnelling drives while safely managing water and minimizing downtime.
