The Ministry of Railways announced a major engineering achievement for the Mumbai-Ahmedabad Bullet Train project. All five precast-prestressed heavy portal beams were successfully installed over the active Amdavad-Vadodara Railway line in Maninagar. This entire operation was completed in just 22 days.
What are the key details of the beam launching?
The beams were launched in a phased manner on April 8, 13, 19, 24, and 29, 2026. These structures are precast concrete beams measuring 34 meters in length with a cross-section of 5.5 meters by 4.5 meters. The project is being implemented by the National High-Speed Rail Corporation Limited (NHSRCL) with technical and financial support from the Government of Japan.
How was this engineering challenge managed?
The operation was complex because it happened over active railway tracks with overhead electrification and constant train movement. To handle this, a 2,200 metric-ton capacity crawler crane was used for the first time on Indian railway tracks. This allowed the team to reduce the installation time for each beam to about 3.5 hours, whereas earlier estimates suggested it could take up to 9 hours.
Technical specifications of the operation
| Feature | Details |
|---|---|
| Total Beams Launched | 5 Beams |
| Completion Time | 22 Days |
| Heaviest Beam Weight | 1,360 Metric Tonnes |
| Crane Capacity | 2,200 Metric Tonnes |
| Beam Length | 34 Meters |
| Execution Time per Beam | Approximately 3.5 Hours |
Frequently Asked Questions (FAQs)
How long did it take to launch the five portal beams in Maninagar?
The entire process was completed within 22 days, with individual launches occurring on April 8, 13, 19, 24, and 29, 2026.
What was the weight of the heaviest beam installed?
The heaviest beam weighed approximately 1,360 metric tonnes, making it one of the heaviest lifts ever performed on Indian railway infrastructure.
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