The immersion tunnel is part of the Busan-Geoje Fixed Link – an extraordinary project that helps resolve a significant economic and social issue. By means of two cable-stayed bridges spanning 475 metres and 2 x 230 metres respectively, and a 3.2-kilometre immersion tunnel, the project as a whole – which has an investment value of 1.5 billion euros – connects South Korea’s ‘second’ capital to the peninsula of Geoje.
The contract amount for the immersion operation is 70 million euros, which constitutes a major contract for Mergor. The immersion operation is being performed at the behest of Daewoo Engineering & Construction, which is part of the PPS Consortium for the project, GX Fixed Link Corporation.
Over a period of three years, the Mergor/Geocon team will install a total of 18 tunnel units, each of 180 metres in length. The deepest of these units will be placed approximately 60 metres below sea level, which is exceptionally deep for an immersion tunnel.