en.Wedoany.com Reported - The Mumbai-Ahmedabad High-Speed Rail project in India has completed the erection of five giant portal beams within 22 days on the Ahmedabad-Vadodara railway line near Maninagar. Each beam is a precast, prestressed concrete structure weighing between 1,170 tonnes and 1,360 tonnes. The first beam, erected on April 8, weighed approximately 1,360 tonnes, making it one of the heaviest structures ever lifted over an operational railway line in India.

The erection operations were carried out on April 8, 13, 19, 24, and 29, 2026. The installation time for each beam was approximately 3.5 hours, significantly less than the 9 hours typically required for such operations. A 2,200-tonne crawler crane was deployed during construction, marking the first use of equipment of this class on an operational railway line in India. The project team coordinated with railway authorities to complete the work while overhead catenary power supply was maintained and trains continued to run.

The Maninagar section faced structural challenges due to skewed alignment and constrained site conditions. The high-speed rail corridor crosses multiple operational railway lines on an elevated viaduct, with pier spans ranging from 30 meters to 34 meters. The portal beams are approximately 34 meters long, with a cross-sectional dimension of 5.5 meters by 4.5 meters, and were cast in-situ and erected as monolithic units.

The Mumbai-Ahmedabad High-Speed Rail project is a component of India's high-speed railway infrastructure development.

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