Nanakramguda metro to be designed as portal structure with 3 pillars
This is in regard to the Airport Metro Project from Raidurg station to the Rajiv Gandhi International Airport.
By Newsmeter Network Published on 18 Feb 2023 3:17 PM IST
Hyderabad: It has been decided that the Nanakramguda junction Metro will be designed as a portal structure with three pillars against the four-pillar design. This is in regard to the Airport Metro Project from Raidurg station to the Rajiv Gandhi International Airport.
In order to study the technical challenges involved in the critical stretch from Raidurg to Nanakramguda junction, Airport Metro project adviser (civil engineering), HAML and former member (engineering) of Railway Board Subodh Jain, on Saturday, inspected the proposed alignment along with HAML MD N.V.S Reddy and senior engineers.
Some of the challenges examined during the inspection were:
1. Crossing Mindspace junction at a height of about 21 meters (69 feet), which has an underpass, rotary, and a flyover, is a major challenge. Different options for laying the metro viaduct will be examined.
2. Different design options for the new integrated Raidurg station of the extended metro corridor 3 (blue line) and the Airport Metro station will be examined mainly from a passenger convenience point of view. This multi-level interchange station will be designed in such a way as to avoid shifting of the extra high voltage 400 kV underground cables adjacent to it.
3. Airport metro viaduct crossing the multi-level flyover at the Biodiversity junction at a height of about 20 meters (66 ft) is another engineering challenge. Airport metro pillars will be located away from the flyover pillars in a staggered way to avoid any adverse effect on the foundations of the flyover pillars. The obligatory span crossing over the flyover can be planned as ācast in situā prestressed concrete girders.
The Nanakramguda junction station will have to be designed as a portal structure, i.e., with three pillarsāone in the central median and a pillar each on both edges of the roadāas the road median is a curve and the station is required to be nearer to the junction to cater to the traffic coming from different directions and roads.
