This past Friday was special. Besides TBM Ganga recording Agra Metro Priority Corridor’s final breakthrough and train trial runs beginning, Afcons Infrastructure – SAM India JV also commissioned their fourth tunnel boring machine (TBM) in northern Agra.
The consortium’s fourth TBM – a refurbished Terratec Earth Pressure Balance (EPB) machine with serial number S115 was launched to build a roughly 2.2 km tunnel for the up-line from RBS College Ramp towards Agra College Interchange Station on Agra Metro Phase 1 project‘s 7.93 km Package AGCC-02.
Along the way, the TBM will record two tunnel breakthroughs at RBS College Station and Raja Ki Mandi Station located on 14.25 km Line-1 (Sikandra – Taj East Gate).
The machine with an original cutterhead diameter of 7.51m was downsized and reconfigured to meet Agra Metro’s tunnel requirements. A new cutterhead was attached which I believe has a diameter of around 6.52 meters.
Afcons Infrastructure – SAM India JV began lowering and assembling its parts at RBS College Ramp in November.
Uttar Pradesh Metro Rail Corporation (UPMRC) had awarded Afcons – Sam India Consortium with underground Package AGCC-02’s Rs. 1819.79 crore civil construction contract in March 2022 with a 48 month deadline.
Their section from chainage 3630.000 to 11564.485 consists of twin tunnels connecting 7 stations at Taj Mahal, Agra Fort, Jama Masjid, SN Medical College, Agra College, Raja Ki Mandi and RBS College.
If my calculations are right then Afcons’ tunneling team will record a total of 10 breakthroughs between RBS College Ramp and Jama Masjid.
While we’re on the topic of RBS College Ramp, there’s at least another 9 months to go for construction work to start towards Sikandra. UPMRC had invited bids for its construction via 3.725 km Package AGCC-05 in November and the current technical bid opening date is January 19, 2024.
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