On April 30, 2008, Christian Ingerslev, P.E. gave a presentation on the multidisciplinary design, construction, and management of the Bosphorus Tunnel (Marmaray), a new rail link between Europe and Asia under the Bosphorus in Istanbul, Turkey. Designed to the most stringent seismic criteria corresponding to a 7.5 magnitude event on the Richter scale and to the fire safety requirements corresponding to a 100 MW design basis fire, this project is over 70 km long and includes 12.5 km of bored and cut-cover tunnels, up to 40 underground and surface stations, new track, signaling systems for intercity and commuter trains and extensive maintenance facilities.
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