Afcons has launched Tunnel Boring Machine (TBM) without Diaphragm Wall (D-wall) in the Underground (UG-1) Project of Ahmedabad Metro.
For the first time in India, such method has been used for any metro project. This method was previously used in the construction of Istanbul Metro.
Afcons is constructing two underground stations, twin tunnels of about 3.5 km length in total, a cut and cover section besides a ramp connecting elevated and underground sections in the UG-1 project of Ahmedabad Metro.
The first TBM, ready for commissioning, could not be set in motion as the headwall construction came to a standstill due to delay in handing over of land for Kankaria Station and various other issues.
