The Mumbai-Ahmedabad Bullet Train project has achieved a major milestone with the completion of 1000 Full Span Box Girders each at Vadodara and Vapi casting yards. These girders, crucial for the viaduct construction, highlight India’s engineering prowess, with 213 km of the viaduct already completed across Gujarat using advanced launching techniques.
Project Details:
The project spans 352 km across Gujarat and DNH, with 290 km of the viaduct to be constructed using Full Span Launching Methods (FSLM). The remaining section will primarily rely on segmental launching, with the project also featuring 17 steel bridges, 8 stations, a 350-metre tunnel, and several other civil structures.
Details of full span launching girders in Gujarat & DNH:
| Scope: Total no. of full span girders | No. of FSLM girders cast | No. of FSLM girders launched to make viaduct |
| 7277 (290 km) | 5169 (207 km) | 4651 (186 km) |
Technical Highlights:
- Each full span girder measures 40 metres and weighs 970 MT, showcasing the sheer scale and precision involved.
- The casting yards are state-of-the-art, equipped with ‘Make in India‘ machinery such as straddle carriers, full span launching gantries, girder transporters, bridge gantries, and specialised moulds for girder casting.
Progress Update:
- Currently, 213 km of viaduct has been successfully completed in Gujarat using a combination of Span by Span (SBS) and FLSM techniques.
- This achievement underscores the rapid pace and efficiency of construction efforts for the project.
Conclusion:
With the successful completion of 2000 Full Span Girders, the Mumbai-Ahmedabad Bullet Train project is steadily progressing towards its goal. This milestone reflects India’s commitment to high-speed rail infrastructure, leveraging advanced engineering and local manufacturing to realise one of the nation’s most ambitious transportation projects.
Source: NHSRCL – Press Release | Image Credit: NHSRCL
