dc.contributor.author | Yang, C | |
dc.contributor.author | Weller, SD | |
dc.contributor.author | Wang, Y-X | |
dc.contributor.author | Ning, D-Z | |
dc.contributor.author | Johanning, L | |
dc.date.accessioned | 2017-03-08T12:13:52Z | |
dc.date.issued | 2017 | |
dc.description.abstract | It is possible that the excessive dynamic responses of tunnel elements could jeopardize
the safety and accuracy of installation procedures used during subsea tunnel construction. To
investigate the motion characteristics of the tunnel element, experimental measurements of a
moored tunnel element suspended from a twin-barge were conducted in a wave flume at a
geometric scale of 1:50. A corresponding numerical model was developed to simulate the dynamic
response of the tunnel-barge system in realistic sea conditions, using hydrodynamic parameters
from a radiation/diffraction potential model. Multiple linear wave conditions and three immersion
depths were tested. The results indicate that the motion response of the tunnel element increases
with decreasing immersion depth, and the natural periods of the tunnel, barge and combined
tunnel-barge system play key roles in the influence of wave conditions on the motions of the tunnel.
It was found that the low-frequency motion of the tunnel element is large in small wave periods.
The mooring system under such conditions needs to be considered carefully during system design
in order to safely control the motions of the tunnel-barge system in energetic ocean environments. | en_GB |
dc.description.sponsorship | The work is supported by the National Natural Science Foundation of China (Grant
No.11272079), the Foundation for Innovative Research Groups of the National Natural Science
Foundation of China (Grant No. 51221961) and the China Scholarship Council (award to Yang Can
for 1 year’s study abroad at the University of Exeter). | en_GB |
dc.identifier.citation | Vol. 135, pp. 63–75 | en_GB |
dc.identifier.doi | 10.1016/j.oceaneng.2017.03.001 | |
dc.identifier.uri | http://hdl.handle.net/10871/26329 | |
dc.language.iso | en | en_GB |
dc.publisher | Elsevier | en_GB |
dc.rights.embargoreason | Publisher policy | en_GB |
dc.subject | Immersed tunnel | en_GB |
dc.subject | Twin-barge | en_GB |
dc.subject | Motion response | en_GB |
dc.subject | Irregular waves | en_GB |
dc.subject | Numerical model | en_GB |
dc.title | Hydrodynamic response of a submerged tunnel element suspended from a twin-barge under random waves | en_GB |
dc.type | Article | en_GB |
dc.identifier.issn | 0029-8018 | |
dc.identifier.journal | Ocean Engineering | en_GB |