The assembly of second tunnel boring machine has commenced at Sawli (near Ghansoli) in Mumbai at 39 meters below ground. This TBM will begin its journey from Sawli towards Vikhroli.
The gantry weighing 190 metric tons, having a length of 18 meters, 10 meters width and 9 meters in heights lowered today.
There are total 4 gantries in both the TBMs which will be attached to the main shield assembly & cutterhead.
The gantries will travel the complete excavated length as part of the TBM while supporting the critical operations such as excavation, waterproofing, tunnel lining segment installation etc.
Due to the space restrictions in Sawli shaft, assembly of TBM at 39 meters below ground is meticulously planned.
TBMs initial drive is expected to commence in July 2026.
