Proceedings of DFI-India 2019: 9th Conference on Deep Foundation Technologies for Infrastructure Development in India, (DFI)
Challenges Encountered for Foundation of Durgam Cheruvu Extradosed Bridge in Hyderabad - Design and Construction
Krishnapriya P. R., M.Tech, Vignesh R. and Subir Das, M.Tech
India’s largest extradosed bridge (on completion) is being constructed over Durgam Cheruvu Lake to connect Madhapur and the heavily populated resident area of Jubilee hills. Madhapur, itself is heavily populated owing to the presence of numerous IT hubs of HITEC city and Ambedkar Open University, both of which infringe with the bridge alignment on Madhapur approach. The surrounding areas of Durgam Cheruvu are a part of undulating topography with elevation ranging from 520 to 630 mean sea level (MSL). The main geomorphic units are residual hills, pediment inselbergs and valley fills. Based on the details of geotechnical investigation and survey, it was observed that the hard massive boulders of pink / grey granite are filled throughout the bridge alignment. Providing the foundation for the bridge in the valley slope is quite challenging. Mobilization of the machinery and supply of materials to the project area is restricted because of heavy traffic regulations and limited access due to the terrain. Negating the aforementioned overwhelming challenges, the open foundation for the bridge has been successfully completed. The present study encompasses the various challenges encountered for the design and construction of the foundation for the extradosed bridge.
|article #3307; publication #1059 (India2019)|