DMRC starts work on Phase-IV underground corridor

Delhi Metro Rail Corporation (DMRC)
The Delhi Metro Rail Corporation (DMRC) has started construction work on the underground section of the 28.92 km-long Janakpuri West–R K Ashram Marg corridor of the underground section of Phase-IV project. This corridor is an extension of the Delhi Metro's Magenta Line consisting of 7.74 km-long underground lines. The work commenced for the construction of D Wall at the Krishna Park Extension Metro station and the tunnel segments shall be used for tunnelling with the Tunnel Boring Machines (TBM) on a 1.4-km stretch between Janakpuri West and Keshopur. This stretch will also have the Krishna Park Extension Station in between, as well as a 365m cut-and-cover open ramp near Keshopur, leading to the elevated section. The excavated area is secured by the D walls and the construction work of the underground station will be commenced. This technology has been used for Delhi Metro's underground stations right since Phase 1. The tunnel segments are being cast at the state-of-the-art casting yard developed at Mundka. The casting yard will make 2,100 rings for the tunnelling work for which the contract was awarded last year on an EPC basis housing 22 stations. Under Phase-IV, 61.679 km of new metro lines shall be constructed across three different corridors comprising 45 metro stations. These new sections shall provide interconnectivity among the already operational sections of the DMRC network of which 22.35 km will be underground.
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