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Anna Nagar Tower- Thirumangalam metro rail tunnel completed
Posted on: 22/Jul/2014 10:12:32 AM
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The first tunnel was drilled up to VeeCare Hospital in Thirumangalam; the other tunnel boring machine (TBM) had completed 75 per cent of the work.The tunnel ends at Thirumangalam and from here, a ramp would be built, connecting the elevated stretch from Koyambedu-St Thomas Mount.
Meanwhile, another breakthrough has been achieved, with the TBM of Afcons-Transtonnelstroy completing its first tunnel drive from May Day Park to Central.
The TBM had a successful breakthrough at Central advance shaft area. A total of 1,040 m of tunnelling has been completed and the TBM has crossed several buildings, including the Cooum River and Southern Railway tracks. Metro Rail has also started working on cross passages in the underground stretch. Cross passages are provided as a connecting link between twin tunnels mainly for the purpose of safe evacuation of passengers during an emergency.
