An Experimental Study on the Phase Lags in Response of Pile Base Pressure to Waves at Different Horizons With Silty Soil
Abstract：In recent years, the pile foundation has been used more and more widely in the offshore constructions. With respect to the research on phase lags produced in the re sponse of pile base pressure to waves at different horizons below the seabed, researchers both at home and abroad have paid much more attention to the phase lags of pore water pressure than to those of total soil pressure. In this paper, the phase lags of the total soil pressure at different horizons below the seabed are studied by means of in-lab wave flume experiment. This is conducted under the conditions of liquefaction and non-lique- faction at different wave heights. The results show that if the soil is fully saturated and has a homogeneous permeability, there is no phase lag occurring between different horizons under the condition of non-liquefaction. But under the condition of liquefaction, obvious phase lags occur between the liquefied horizon and the non-liquefied one, during which the amplitude of the total pressure first increases and then decreases, with the maximum being at a depth of --10 cm.
Keywords：silty soilliquefactiontotal soil pressurephase lagwater flume
Publication Date：2012-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：12( 21-32 )