Breakthrough at Lal Quila
30 September 2015INDIA – The TBM boring from Kashmere Gate to Lal Quila in Delhi has completed its journey. Part of Delhi Metro Phase III, contract CC-07 forms part of the extension of the Central Secretariat corridor to Kashmere Gate.
The contractor is a joint venture of Russia's Metrostroy and local firm ERA Infra.
A Delhi Metro Rail Corporation spokesperson said: "This TBM was lowered at Kashmere Gate shaft on 6 December 2014 and after assembly of the TBM below the ground the initial drive began on 26 December 2014. The maximum depth of the tunnel is 16m below the earth's surface."
The 6.61m-diameter EPBM was manufactured by Terratec. It is kitted out with 33 no. 17in disc cutters. It has excavated 1,351m, and another TBM is still working on the 1,356m parallel bore.
Under the Delhi Metro Phase-III plan, the Violet Line is being extended from its current terminus to meet the Yellow and Red Lines at Kashmere Gate Station. This will offer an alternative route between Central Secretariat and Kashmere Gate Stations, easing crowds on the heavily-used Yellow Line.
