Mumbai - Ahmedabad Bullet Train Project: NHSRCL Develops 25 Casting Yards On 1,000 Acres

by India Infrahub - Jan 1, 2022 12:14 PM +05:30 IST
Mumbai - Ahmedabad Bullet Train Project: NHSRCL Develops 25 Casting Yards On 1,000 AcresFirst full span 40 m Box Girder that was erected by NHSRCL (Ministry of Railways)

The National High-Speed Rail Corporation Limited (NHSRCL), the executing agency of the Mumbai-Ahmedabad HSR corridor (MAHSR), has developed casting Yards at 25 strategic locations along the alignment.

Out of 25 casting yards, 17 are full span casting yards and eight are segmental casting yards. Each Casting Yard is spread over 16 to 93 acres as per requirement and is located adjacent to the High-Speed Rail alignment.

According to NHSRCL, the cumulative area of 25 Casting Yards is around 1,000 acres.

NHSRCL has adopted the full span launching method along with the segmental method. The Full Span girders (40 m length) are preferred over segmental girders as their erection is seven times faster.

However, at locations where full span girder launching is not feasible due to site constraints like road crossings, canals, pipelines, major rivers and curvature radii less than 6,000 metres, segmental girders are used by NHSRCL.

While the full span girder of 40 m is cast in one go, segmental girders are cast in small pieces (15-24 in number) of lengths varying from 1.75-2.5m each. Then these small pieces are stitched together at the site using prestressing cables to make spans of length from 35-60 m.

Recently, NHSRCL developed a casting yard on 22 acres near Bhatia Toll Plaza, Village-Vaktana, Surat.

In this yard, all the required facilities like a concrete batching plant (90 Cu.M./Hour), four gantries of 150 MT each, four gantries of 10 MT each, material storage, laboratory for testing of material, site office, labour camp to accommodate 500 personnel, medical facility including ambulance etc. have been developed to ensure continuous casting of segments.

Get Swarajya in your inbox everyday. Subscribe here.

An Appeal...

Dear Reader,

As you are no doubt aware, Swarajya is a media product that is directly dependent on support from its readers in the form of subscriptions. We do not have the muscle and backing of a large media conglomerate nor are we playing for the large advertisement sweep-stake.

Our business model is you and your subscription. And in challenging times like these, we need your support now more than ever.

We deliver over 10 - 15 high quality articles with expert insights and views. From 7AM in the morning to 10PM late night we operate to ensure you, the reader, get to see what is just right.

Becoming a Patron or a subscriber for as little as Rs 1200/year is the best way you can support our efforts.

Become A Patron
Become A Subscriber
Comments ↓
Get Swarajya in your inbox everyday. Subscribe here.
Advertisement

Latest Articles

    Artboard 4Created with Sketch.