X-Nico

3 unusual facts about New Austrian Tunnelling method


Mitsuzawa-kamichō Station

The station was constructed at a depth of 30.5 meters using the NATM method, with rounded tunnels unusual for Japanese metro systems.

Mitsuzawa-shimochō Station

The station was constructed using the NATM method, with rounded tunnels unusual for Japanese metro systems.

Southwick Hill Tunnel

The tunnel was built through the chalk of Southwick Hill using the New Austrian Tunnelling method.


Santa Ana metro station

It was initially a single-line station on the Line 2, subsequently in 1998, the station begins to be adapted to become a transfer station, as a part of the extension of the Line 5 from Baquedano metro station to Santa Ana station, in which was used the New Austrian Tunnelling method.


see also