The Mumbai-Ahmedabad bullet train project achieved a milestone with the launch of India's largest rail tunnel boring machine (TBM) at Vikhroli. The 13.6m diameter, 3,100 tonne TBM will excavate a 6km single-tube tunnel under dense urban areas, including the Mithi River. This is part of the 21km underground section, with 16km to be excavated by TBMs.
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- ›TBM Diameter: 13.6 m
- ›TBM Weight: 3,100 tonnes
- ›Target this Data: TBM diameter 13.6m, weight 3,100 tonnes, tunnel length 6km
- ›Target this Nodal Body: National High Speed Rail Corporation Limited (NHSRCL)
- ›Target this Method: Mixshield TBM for mixed ground and high groundwater pressure conditions
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