Dynamic Response of Submerged Floating Tunnels under Earthquake

Although actual submerged floating tunnels have not yet been constructed, they are seen as one of the most promising structures for strait crossings. The authors proposed a suitable model for a super-long submerged floating tunnel using the modified Morison's equation even if the phase delay by propagation of earthquake wave should be taken into consideration. As a result of this study, a super-long tunnel of 2km in length were analyzed, and the fundamental characteristics of the response due to earthquakes were obtained.