Breakthrough at Metro Istanbul Station Oct 2008
Breakthrough at Guney Sanayi Station
- The LOVAT RME257SE Series 23100 TBM has broken through at Guney Sanayi Station. It is the third LOVAT TBM delivered to the Gulermak - Dogus JV for expansion of Istanbul's Metro System.
- The 6.5m diameter mixed face EPBM commenced excavation at the Basak Konutlari station, completing 3,640m of 6,450m of tunnel en route to Mahmutbey Station. The TBM attained a daily average production rate of 16m/day with a best day rate of 22m.
- Geological conditions encountered consisted of soft ground, primarily comprised of clays, silts and sands, with maximum EPB pressures of up to 5 bar.
- The TBM will continue excavating from the Guney Sanayi station with a 1,900m drive to Istoç station, then a 910m drive to Mahmutbey Station.