Design and Construction of an Underground Metro Railway Station in Rocky Strata with Hybrid Construction Methodology at New Delhi

This paper deals with the design construction aspect of a Metro Railway underground Station in Delhi under Delhi Metro Railway project - Phase III. Proposed station building is 250 m long, 20m wide and 16.5m deep. Station is placed 2.5m below road level. Building is having three levels of slabs, namely roof, concourse and base slab. Geological formation of the zone exhibits moderately weathered quartzite rock at a depth of 6 m to 17m below ground level with silty sand topping.