Effects of Floating Airbag on Cable Hydrodynamic Behaviors: An Experimental Study

Abstract

The development of an offshore island presented a need to construct an electricity grid with the laying of submarine cable. The floating airbag is a useful tool for cable construction, especially during landing. The effects of these airbags on cable hydrodynamic behaviors were investigated in this study. Regular wave conditions with various airbag intervals and cable masses were employed in wave flume tests. The vertical displacements and tensions of the cable under different test conditions were investigated. It was found that the peak values of the displacement amplitudes and tensions were obtained during the cable landing phase.

Keywords

• cable landing
• floating airbag
• hydrodynamic behaviors
• experimental study