ISTANBUL STRAIT ROAD TUBE CROSSING PROJECT (EURASIA TUNNEL)

摘要

Parsons Brinckerhoff is lead designer on a 14.6km scheme that includes constructing a twin deck, four lane road tunnel beneath the Bosphorus Strait, connecting the European and Asian shores of Istanbul. The company was appointed to lead an international joint venture of consultants, and developed the initial design concept and later oversaw the development of the detailed design. The most challenging section is 5.4km in length and includes 3.4km of bored tunnel - using the world's largest diameter slurry shield tunnel boring machine - and 1 km of twin tunnels constructed using observational methods, as well as approach roads, toll plazas, ventilation facilities, tunnel control facilities, portal structures, and cut and cover tunnels.