Japanese experts to train NHSRC employees and contractors
India is now joining countries like Italy, Norway, South Korea and China ad it has been designing and manufacturing equipment such as the indigenously-built crane-based full span launching equipment of 1100MT capacity, designed and manufactured by Larsen & Toubro at Kanchipuram, Chennai, and 55 MSMEs, Railway Minister Ashwini Vaishnaw said.
He launched the crane-based Full Span Launching Equipment on 9 Sept 2021 to expedite construction of Mumbai-Ahmedabad High Speed Rail (MAHSR) Project.
This will expedite construction of high speed railway, as it is the proven technology in metro and similar projects, he added.
Work has already begun on 325-km (in Gujarat state) out of 508-km corridor between Mumbai and Ahmedabad. More than 97% land has been acquired for the project in Gujarat and Dadra and Nagar Haveli and 30% land in Maharashtra.
This project will improve skillset in various rail construction technologies. Japanese experts will provide training to National High Speed Rail Corporation Limited employees and contractors.
The project will boost the overall economy of the area by deploying 1,000s of trucks, dumpers, excavators, batching plants, tunnelling equipment and so on. It is estimated that 7.5 million ton of cement, 2.1 million ton of steel and 70,000 tonnes of structural steel will be used in the construction.
The National High Speed Rail Corporation Limited is also preparing detailed project reports for seven high speed rail corridors. With the experience of execution of MAHSR project, the works of other corridors will be faster, Vaishnaw informed.
For the construction of viaduct superstructures of 508-km long, Mumbai-Ahmedabad High-Speed Rail Project (MAHSR), the State-of-the-Art construction methodologies like Full Span Launching Methodology (FSLM) will be adopted. This technology will expedite the process of launching girders as the precast girders of full span length will be erected as a single piece for double track viaduct. FSLM is used world over as it is faster than the segment by segment launching method, usually adopted for the construction of viaducts for metro system.
The standard precast Pre-Stressed Concrete (PSC) Box Girders (weight ranging from 700 to 975 metric ton) of span 30, 35 and 45 meters will be launched by using FSLM methodology for the high speed corridor. The heaviest PSC Box Girder weighing 975 MT and of 40 meter length will be used for the first time in the construction industry in India for MAHSR project.
Twenty such launching equipment will be required for the construction of viaduct 325-km of viaduct superstructures between Vapi and Ahmedabad in Gujarat.
The equipment is designed to handle the Full Span Precast girders from casting bed to stacking yard and further feeding them to Bridge Gantry for further erection. This is a tyre mounted self-propelled gantry crane having lifting capacity of 1100MT. #manufacturing #technology #projects #tenders #construction #makeinindia /fiinews.com
