Abstract
This paper addresses the planned construction methods for the immersed tunnel. The immersed tunnel is constructed as a concrete tunnel directly founded on improved soils. Elements are constructed in a casting basin, towed approximately 36 km and immersed at the tunnel alignment which is exposed to waves from the open sea. The effect of waves and currents on the operation of connecting one tunnel element to the previous tunnel element at 45 m of water depth is a major challenge. (A) This paper was presented at Safety in the underground space - Proceedings of the ITA-AITES 2006 World Tunnel Congress and the 32nd ITA General Assembly, Seoul, Korea, 22-27 April 2006. For the covering abstract see ITRD E129148. Reprinted with permission from Elsevier.
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