Client: Coleman Tunnelling
Brief: Tunnel survey, TBM gyroscope adjustments
Location: Mahatma Gandhi Road, Durban, South Africa
This complex pipe jacking project took place under 400m of road in Durban Point area. It involved the guidance of a 1.4m wide tunnel boring machine and later the corrections of its course. The machine ended up off target by 15mm in the horizontal and 2mm in the vertical.