Abstract
In this paper, the results of a series of experiments on wave-induced pore-water pressures around a mono-pile are presented. Unlike the previous study, in which the mono-pile was fully buried, the mono-pile in this study was installed at 0.6 m below the seabed surface. In this study, we focus on the pore-water pressures around the mono-pile and beneath the pile. The experimental results lead to the following conclusions: (1) the seabed response is more pronounced near the surface (in the region above 30 cm deep), and the rate of pore pressure attenuation gradually slows down. For the region below 0.3 m, the response is much smaller; (2) in general, along the surface of the pile, pore pressures increase as the wave height and wave period increase; (3) the spatial distribution of pore pressure near the pile will vary with different wave periods, while the wave height only has a significant effect on the amplitude; and (4) At z = −0.15 m, the pore pressure in front of the pile is the largest, while at the point 0.1 m below the bottom of the pile, the largest pore pressure occurs behind the pile.
Highlights
The phenomenon of wave–seabed interactions around marine infrastructures has attracted considerable attention from coastal engineers in light of the growing activities in marine environments
It has been reported in the literature that the fluctuations in dynamic wave pressures on an ocean floor will further induce variations in pore-water pressures and effective stresses in the seabed
Eng. 2019, 7, 237 experiments, we focus on the pore-water pressure in the seabed around and under the mono-pile, rather than just the vertical distribution in a cross-section
Summary
The phenomenon of wave–seabed interactions around marine infrastructures has attracted considerable attention from coastal engineers in light of the growing activities in marine environments. Pile foundations are commonly used as a part of supporting structures, such as fixed-type platforms, offshore wind turbine foundations, etc These pile foundations have been used to transfer the forces from the superstructure to the seabed. It has been reported in the literature that the fluctuations in dynamic wave pressures on an ocean floor will further induce variations in pore-water pressures and effective stresses in the seabed. Very fine-grain constituents have a great effect on wave-induced liquefaction. In their experiment, there was no structure in the seabed, and the effect of a pile on the response of the seabed could not be considered. We focus on the oscillatory pore pressure in the seabed around a pile
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
