The TBM rotation is being carried out using an innovative Air Mover hovercraft system ... The tunnel is being excavated by the TBM "Karpatka," which is 114 metres long, 15 metres in diameter, and weighs approximately 4,400 tonnes.
The delay in constructing the tunnel shaft at Thirumayilai, challenging soil conditions, temporary stoppage of tunnelling activity due to cracks in a school and a gas leak obstructed the progress ....
The TBM reaches its final destination, station S12 - Hà NộiStation... The first tunnel boring machine (TBM) deployed in central Hà Nội ... The TBM reaches its final destination, station S12 - Hà Nội Station.
HÀ NỘI — The first tunnel boring machine (TBM) deployed in central Hà Nội has completed its historic passage through four underground stations of the Nhổn-Hà Nội Station urban railway project, reaching station S12 on December 1.