This achievement was marked by the launching of a 40 m long full-span box girder near Surat, Gujarat, according to the National High Speed Rail Corporation Limited (NHSRCL) statement. Pic/NHSRCL
Out of 300 km of superstructure, 257.4 km is constructed through Full Span Launching Method (FSLM). This includes 14 river bridges, 37.8 km through span-by-span (SBS), 0.9 km steel bridges (10 spans ranging from 60 to 130 m in 7 bridges), 1.2 km PSC bridges (20 spans ranging from 40 to 80 m in 5 bridges) and 2.7 km in station building
For constructing 257.4 km of viaduct through FSLM and 37.8 km of viaduct through SBS, 6455 & 925 spans of 40 m each, respectively, were used
The project has supported the use of indigenously designed and manufactured equipment such as straddle carriers, launching gantries, bridge gantries, and girder transporters for construction. This marks a first for Indian infrastructure, showcasing India's growing capabilities in high-speed rail technology with the support of the Japanese government.
The adoption of the full span launching method has significantly accelerated construction, as full-span girder erection is up to ten (10) times faster than conventional segmental methods
Each full-span box girder weighs 970 metric tons. Segmental girders are used selectively in locations where full-span installation is not feasible
Steel bridges are fabricated in seven workshops spread all across the country, three in Gujarat, one each in Uttar Pradesh, Tamil Nadu, Maharashtra and West Bengal, truly exemplifying the spirit of unity of our country
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