Track works for bullet train corridor begins in Gujarat

August 31, 2023
Track works for bullet train corridor begins in Gujarat

Gandhinagar: The construction of the first Reinforced Concrete (RC) track bed for the Mumbai-Ahmedabad High-Speed Rail corridor track system as used in the Japanese Shinkansen, started in Surat. This is for the first time, the J-slab ballastless track system is being used in India.

 

Track works for bullet train corridor begins in Gujarat

The track system comprises of a pre-cast track slab over which fastening devices and rails are fitted. This slab rests on the RC track bed which has a thickness of approx. 300mm and constructed in-situ (at the site) for individual UP and Down track lines on the viaduct top. The width of the RC track bed is 2420 mm.

MAHSR Track System

The RC anchors are provided to avoid any longitudinal and lateral restraint to the track slab. The size of the RC anchor is 520 mm in diameter and the height is 260 mm. These are constructed at approx. 5 m centre to center.

Track System

In RC anchor, reference pin is installed for achieving desired alignment (both horizontal and vertical) suitable for train operation at 320 kmph.

The contracts for the track works in the complete Gujarat portion have been awarded and presently, material procurement for track works is in an advanced stage. More than 14000 MT of JIS rails, and 50 number of moulds for casting track slabs have already been received from Japan.

Track works for bullet train corridor begins in Gujarat

Track Slabs are to be manufactured in dedicated factories and two such factories have already been set up. These factories are equipped with the most sophisticated and state-of-the-art technologies and infrastructure to produce precise slabs for HSR track construction.

Special Construction machineries which include rail feeder car, slab laying car and CAM (Cement Asphalt Mortar) laying car will be used for track works.

Track works for bullet train corridor begins in Gujarat

To understand the methodology of execution of work related to track laying, Extensive Training and Certification for the Indian contractor’s personnel is being organized with Japan Railway Technical Services (JARTS) as Training and certification agency.

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