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Article: Second phase of New Delhi Metro Line completed
- Article from:
- Mining Engineering
- Article date:
- September 1, 2009
- Author:
CopyrightCopyright Society for Mining, Metallurgy, and Exploration, Inc. Sep 2009. Provided by ProQuest LLC. (Hide copyright information)
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Construction of the second phase of operations on the largest tunnel in any urban city in India, the 2.85-km (1.7-mile) Airport Express Rail tunnel under New Delhi, was completed by Delhi Metro Rail Corp. (DMRC) on Aug. 19.
The New Austrian Tunneling Method (NATM) was used in order to preserve the rare and diverse flora and fauna of the protected forest above the tunnel that runs from Talkatora to Buddha Jayanti Park. With this tunnel breakthrough, only 2 km (1.2 miles) of tunneling is left to be completed for Phase II, in which 35 km (22 miles) of the metro is underground.
The alignment of the Metro line for the Airport Express Line goes under the Central Ridge, which has several rare ...