Istanbul Strait Road Tube Crossing Project: Independent Design Verification Engineer’s Perspective

摘要

The iconic Istanbul Strait Road Tube Crossing Project (Eurasia Tunnel) will ease trafficrncongestion over the Bosphorus Strait separating Europe from Asia. Part 2 of the project is approximatelyrn3.36 miles (5.40 km) long and includes, among other structures, 2.1 miles (3.4 km) of a bored tunnel under thernBosphorus Strait and 0.62 mile (1 km) of twin NATM tunnels on the Asian side. The region’s variable geology,rnhydrology and propensity for seismic activity, combined with high water pressure and large-diameter/doubledeckrntunnel configuration, make the Eurasia Tunnel one of today’s most challenging and complex projectsrnunder construction.rnThe paper focuses on the main features of the project’s Part 2 and its significant challenges from thernperspective of independent design verification (IDV) engineer. It also outlines the IDV review process and itsrnbenefits to the project.