RVNL sets out 7-stage plan for excavation of Tunnel No. 2 Portal-1 of the Rishikesh-Karnaprayag Project
The result of the excavation is a 15 m wide double line railway tunnel on Rishikesh Karnprayag Project.
Representational Image
Rail Vikas Nigam Limited sets out a 7-stage plan for excavation of Tunnel No. 2 Portal-1 of the Rishikesh -Karnaprayag Project using Lattice Girders and Shotcrete for the first time in India through NATM
The result of the excavation is a 15 m wide double line railway tunnel on Rishikesh Karnprayag Project. The video features 7 stages of the construction using NATM on the Rishikesh Karnprayag Project with regular observation and monitoring.
Rishikesh-Karnaprayag Project: The Project proposes to bring rail connectivity to the higher reaches of Uttarakhand. The electrified BG rail line will connect important towns like Devprayag, Srinagar, Rudraprayag, Gauchar, and Karnaprayag (5 districts). This is a technically challenging project involving the construction of a rail line in the rugged Himalayan topography with complex geology and with 83.08% of the total stretch of 125km rail line lying in tunnels (total 17 tunnels).
The first station, Yog Nagari Rishikesh station was commissioned in March 2020. 5 Adit tunnels have been completed and one of the three major Rail Bridges, over river Chandrabhaga Ji at Rishikesh, has been completed. Construction of the other two bridges over river Alaknanda at Lachmoli and Srinagar, respectively, is in progress. Tunneling is being carried out at a steady momentum. Project completion is planned for 2024-25.
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