NEW DELHI: With a length of 12.67km, the Badarpur-Faridabad corridor may not be the longest line in the Delhi Metro network but it will still be unique. Delhi Metro Rail Corporation (DMRC) is using a new technology to build this section.
A senior DMRC official said, “We are using U-girders in this corridor. These have been used in the airport line only.” The result: an incredible 1.2km of the viaduct was built in a month, making it one of the fastest corridors being built in Phase III.
Mangu Singh, managing director, DMRC, said, “About 65% of the civil work on the Badarpur-Faridabad corridor is already over and 75% of the viaduct has been built.” The fast pace is attributed to the U-girders, which are considerably longer than the usual ones used to build the viaduct or the elevated section of an alignment.
So, whereas a normal girder measures only 2.2-2.5m with several spans making one segment, a U-girder span measures 22-27m. “Two pieces of the U-girder make one segment of the viaduct, with each girder being the up and down line. A considerably larger work space is needed to use U-girders, along with extra machinery,” added the official. More info