DELHI NCR (Metro Rail News): Contractors for the Delhi-Meerut RRTS project’s Package 8 have completed 3 out of 6 tunnels, marking a significant milestone in the semi-high-speed rail project. Afcons Infrastructure has progressed to the subsequent stage of the project to aid system works while the tunnel construction work continues.
Last week, Afcons poured first-stage invert concrete inside the down-line tunnel between Begumpul Ramp and Begumpal Station. This work, which is being done above the tunnels’ precast segment lining, will help Larsen & Toubro with track-laying work under Package 17.
In November 2020, Afcons was awarded the Rs. 1529.10 crore contract for Package 8, with a deadline of 1310 days. They have deployed 3 Terratec Earth Pressure Balance (EPB) machines (S88, S89 & S90) with a diameter of 7.51m each to construct six twin tunnels from Brahampuri DN Ramp to Begumpul UP Ramp. In addition to tunnel construction, they will also be responsible for building three underground stations at Meerut Central, Bhaisali, and Begumpul using the cut & cover method.
While concrete work advances on this particular section, joint tunnel surveys are being conducted by teams from NCRTC, Afcons, and L&T in other areas. The purpose of these surveys is to gather tunnel geometry data using reference points to guarantee accurate track installation.
