DMRC puts record 200 U-girders on NOIDA-Gr NOIDA metro line

The Delhi Metro Rail Corporation has launched a "record 200 U-girders", spanning nearly 2.7 kms of the twin elevated viaduct on the NOIDA-Greater NOIDA metro section in the month of May.
This is the maximum number of U-girders ever launched in any metro corridor in the country within a month, DMRC said in a statement today.
Till now, DMRC had achieved a maximum of 110 U-girders in a month on the Faridabad corridor.
The feat was achieved this month by DMRC's engineers in close coordination with the NOIDA Metro Rail Corporation (NMRC) and local district authorities. Six cranes and six trailers were deployed for launching the U-girders on this corridor.

This will significantly expedite the progress of construction on the corridor, DMRC's Managing Director Mangu Singh was quoted as saying in the statement.
The viaduct on the NOIDA-Greater NOIDA section is being constructed by specialised technique of pre-cast pier caps and precast U-girders.

The typical length of U-girders is 27 m and weighs around 160 tons. The main challenge with U-girders is precision in casting as well as in launching it, which requires specialised cranes of 350/400 tons capacity, it said.
Also, the transportation of U-girders from the casting yards to the site is another challenge because of its length and width.

U-girders have been primarily used on the Airport Line and the Faridabad corridor of DMRC, Kochi Metro and Lucknow Metro, DMRC said.
Managing Director of NMRC Santosh Yadav during his recent visit to the corridor had assured full support and cooperation for commissioning of this line before the scheduled target of March 2018.
The work of NOIDA-Greater NOIDA corridor is being executed by DMRC on behalf of NMRC. The civil works on this corridor consists of 29.7 kms of viaduct and 21 stations. Six kms of viaduct has been completed already on this corridor in a span of one year since the award of first contract for civil works, it said.