DELHI (Metrorail News): Despite severe restrictions imposed by the second wave of the Covid – 19 pandemic in recent months, the Delhi Metro Rail Corporation (DMRC) maintained construction of its Phase 4 routes and accomplished several significant construction milestones. Prior to the installation of the lockdown in April 2021, the total number of employees at DMRC’s locations topped 4,000. However, following the lockdown, many workers chose to return to their native lands. Additionally, several workers who had previously gone to the Holi festival did not return. This resulted in a steady reduction of the workforce to around 2,500.
DMRC not only looked after the employees who remained behind with medical care and housing, but also achieved several significant milestones during its Phase 4 building operation. Throughout this time span, all Covid-related instructions issued by the government were likewise strictly observed. Following the removal of Covid-related restrictions, DMRC’s locations are gradually increasing their workforce capacity.
Tunneling between Janakpuri West and Krishna Park EX1ension on the Janakpuri West – RKAshram Marg corridor for the DMRC’s first underground segment of Phase 4 achieved a number of significant objectives during this period. DMRC completed the tunnelling of 500 meters of one of the 2.8-kilometer-long twin tunnels during these months. Additionally, the Delhi Metro has finished casting more than half of the tube segments in the casting yard. The first of the twin tunnels on this segment is scheduled to open in September.
On the same length, DMRC recently marked another significant milestone by building Phase 4’s first T-girder at Mukarba Chowk. These pre-tensioned T-girders are cast at Mundka’s casting yard. Following casting, these girders are transported to the site and hoisted into place using two gigantic 400 MT capacity cranes. Each girder is 37 metres long and weighs around 90 tonnes. The first girder was built around 18 metres above the piers. Additionally, the launcher was loaded in Majlis Park, and the u-girder would be launched from the launcher along the same stretch from Majlis Park to Mukarba Chowk.
On the Majlis Park – Maujpur route as well, despite personnel shortages, considerable work has been achieved. U-Girders and T-Girders were cast, U-Girders and Pier Caps were erected, and piers at the station and viaduct locations were constructed. As part of this route near the Signature Bridge, work on the Delhi Metro’s fifth bridge over the river Yamuna is also underway. This corridor is crucial because it will complete the Pink Line’s ring of connection.
On the Tughalakabad-Aerocity route, the Panchsheel Park casting yard was ready for casting by installing all essential equipment, including gantry cranes. Additionally, the casting of u girders and piles was continued.
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The silver-colored Aerocity-Tughlakabad Metro route will connect the Kashmere Gate-Raja Nahar Singh Violet Line to the Airport Express Line.
Additionally, four major civil tenders for DMRC Phase 4’s subterranean portions were floated in April and May 2021. These are all being financed by the loan obtained from JICA. Three of the tenders are for the Aerocity-Tughalakabad corridor, while one is for the Janakpuri West-RK Ashram Marg sector. All of the bids are currently in various stages of processing.
With the improvement of the Covid – 19 situation in the country, building activity is likely to accelerate in the coming days.Numerous vaccination camps have already been established on-site for workers, and more are planned.
Additionally, a campaign to educate employees about the benefits of immunisation was performed. As part of its Phase 4 development, the DMRC is currently constructing 65 kilometers of additional lines along three priority routes. By 2025, these routes are anticipated to be finished. However, given the dynamic nature of the Covid situation, completion targets will be adjusted accordingly.