Terratec S67 began excavation on part of the South Section: 1 Mai – Tokyo contract in April this year. Since the installation of the belt conveyor system, the machine has achieved a consistent advance rate of around 14m per day.
Terratec says the alignment presents complex geological challenges, with abrasive sandy soils and sections that pass beneath Herăstrău Lake. This requires precise face pressure control and continuous monitoring. Despite the demanding conditions, the machine’s performance has remained stable, supported by Terratec’s on-site technical team.
Originally refurbished for this assignment, TBM S67 features several enhancements to ensure maximum safety and efficiency.
Field reports indicate moderate cutterhead wear at the centre, typical of sand-abrasive geology.
The new Metro Line 6 will establish a vital underground connection between Gara de Nord and Henri Coandă International Airport, extending Bucharest’s public transport network to one of the city’s busiest travel corridors. The full line will comprise 14.2km of twin tunnels and 12 new stations, linking residential, business, and airport districts across the northern axis of the capital.
