TBM Sudarshan achieves 1.5 km tunneling on Delhi-Meerut RRTS hall Metro Rail At present

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TBM Sudarshan achieves 1.5 km tunneling on Delhi-Meerut RRTS corridor


New Delhi, India (At present Metro Rail): Tunnel work for India’s first Zonal Railway has moved into the following part with the development of about 1.5 km lengthy tunnel by Sudarshan 4.1 (Tunnel Boring Machine) from Anand Vihar to New Ashok Nagar. The 90 meter lengthy machine Sudarshan 4.1 (TBM) has accomplished half tunnel boring of the overall distance of about 3 km lengthy tunnel.

The Delhi-Ghaziabad-Meerut RRTS hall is 82 km lengthy, of which 14 km is in Delhi. The Delhi part has 4 stations, Jangpura, Sarai Kale Khan, New Ashok Nagar and Anand Vihar, with solely Anand Vihar station underground.

Two Sudarshan (TBM) are underway for building of two parallel tunnels of three km size from Anand Vihar station in direction of New Ashok Nagar. Out of this, the primary Sudarshan 4.1 has dug 1.5 km of tunnel thus far, whereas the second Sudarshan 4.2 has additionally constructed about one kilometer of tunnel thus far. To retrieve these Sudarshanas, a retrieving shaft has been constructed close to New Ashok Nagar station, from the place the hall turns into elevated, after the tunneling is accomplished.

On the identical time, about 2 km lengthy parallel tunnels might be constructed from Anand Vihar in direction of Sahibabad in Uttar Pradesh, which can finish in entrance of Vaishali Metro station. Presently, one Sudarshan, 4.3 is digging the tunnel, and the opposite Sudarshan, 4.4 is within the closing phases of assembling which can quickly be launched for tunnel building.

Tunnel rings are made underground by TBM with the assistance of tunnel sections. Seven (7) tunnel segments are usually used to kind tunnel rings. The Tunnel section is being manufactured at NCRTC’s Casting Yard with assured high quality management. As a result of massive rolling inventory and excessive design pace of 180 mph, the width of the RRTS tunnels is being constructed as 6.5 metres. Diameter. That is the primary time {that a} tunnel of such a big dimension is being constructed within the nation as in comparison with the metro system.

Two parallel tunnels are being constructed for the motion of trains within the underground elements of RRTS. Together with this, provision has additionally been made for varied safety measures to make sure the protection of the passengers. There might be a cross-passage roughly each 250 meters within the underground sections for the protection of passengers in case of any emergency. As well as, the tunnel may even have a facet walkway of 60 cm-90 cm huge which can help in upkeep actions in addition to emergencies. Air flow ducts may even be offered to make sure air motion within the tunnel.

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