New Delhi: Larson & Toubro on Monday (January 25) received yet one more Bullet Train associated contract beneath which the corporate bagged the contract for procurement and fabrication of 28 still bridges for Bullet Train. The contract, value Rs 1390 crore, has been awarded to Larson & Toubro –IHI Infrastructure Systems (Consortium), which is a consortium of Indian and Japanese corporations.
It is estimated that about 70,000 MT of metal will probably be used for the fabrication of these metal bridges and Indian Steel industries and their allied provide chains will get an enormous increase.
National High-speed Rail Corporation Limited (NHSRCL) has awarded Contract for Procurement and Fabrication of 28 metal bridges (Superstructure) for crossing over railway strains, rivers, highways, highway and different buildings (P-4 Package) for Mumbai-Ahmedabad High-Speed Rail Corridor, at present.
NHSRCL has already awarded civil contracts for the development of 64% of MAHSR alignment which incorporates 5 (5) HSR stations (Vapi, Billimora, Surat, Bharuch, Anand/Nadiad, Train depot at Surat, and One Mountain Tunnel of 350 metres.
Out of the entire size of 508 km, a most stretch of the Mumbai Ahmedabad High-Speed Rail (MAHSR) will probably be lined by the viaduct, which excludes the 21 km lengthy tunnel close to Mumbai. The MAHSR alignment over viaduct (487km) will span over National Highways, Dedicated Fright Corridor Tracks (DFC), Indian Railways Tracks and rivers at many places. Most of the viaduct is being made of concrete (PSC field, Girder). However, the place the span requirement will probably be greater than 60 meters, metal superstructures have been deliberate, as past a degree PSC buildings grow to be heavy and metal superstructures are thought of to be extra viable and environment friendly.
In complete, 28 metal bridges with particular person spans various from 60 meters to 130 meters will probably be constructed for the mission. The size of all of the metal bridges put collectively will probably be roughly 4.5 km and their development would contain greater than 70,000 tons of metal fabrication.
For this goal, on the preliminary phases, the metal superstructure work was assigned to Japan Lead (JV) Companies, because the job required the development of metal superstructures bridges of high-quality Japanese requirements for high-speed railway. But because the “Make in India” prospect took flight and as fabrication of metal buildings are being executed by Indian corporations for all different railway tasks, NHSRCL took a eager curiosity within the risk of opening metal construction fabrication bid to Indian corporations as properly.
On dialogue with the Japanese facet for opening metal superstructure works to Indian corporations additionally, a High-Power Committee comprising of specialists from each Indian and Japanese facet, specifically NHSRCL, India Experts, and JRTT was fashioned in March 2019.
The important activity of the committee was to evaluate the potential of numerous Indian fabricators and guarantee whether or not they are often entrusted with the stated work. The Committee was additionally tasked with the accountability of recommending the required enhancements to the Indian fabricators in order that their fabrication high quality is levelled with Japanese and international HSR requirements.
Over a span of the following few months, the Committee visited numerous factories in India to evaluate their capabilities and interacted with some reputed fabricators relating to their infrastructure facility, high quality management programs, the abilities of their manpower, and former expertise in Railway metal bridge fabrication. In addition to all this, the Committee additionally visited metal fabrication amenities in Japan in October 2019.
According to the committee, the manufacturing of metal bridges may be achieved by Indian fabrication corporations as they’ve all infrastructure amenities and with the help of highly-skilled human sources and a scientific human-training system the required high quality stage may be achieved.
The Indian corporations could obtain the identical technical & engineering finesse of the Japanese metal bridges by studying, coaching. Just a few main Indian corporations have already got the infrastructure required for the fabrication of this stage.
The technicians, engineers, development staff will probably be uncovered to high-quality studying, coaching, steering, and talent growth requirements required for HSR bridge development and fabrication. Systematic inputs from Japan and different nations which have constructed HSR can additional support in enhancing the workflow programs and improve the workforce right here to satisfy the set requirements. To obtain this, few extra circumstances had been included within the tender as defined beneath.