垂直护岸板桩桩身变形数值模拟研究

采用有限元软件ABAQUS,建立垂直护岸板桩数值分析模型,研究板桩的弹性模量、波浪的波高和波长对桩身水平位移的影响。研究结果表明:垂直护岸板桩向临水侧位移,随着桩的入土深度增加,桩身位移先增大后减小,在深度13 m以下位移较小。板桩的弹性模量对桩身水平位移的影响较小,在其它条件相同的情况下,随着板桩的弹性模量增大,桩身水平位移从桩顶到深度为13 m处逐渐减小,弹性模量对深度13 m以下的板桩水平位移影响较小。波浪的波高和波长对深度0 m到13 m范围内板桩的水平位移影响较大,对深度13 m以下的板桩水平位移影响较小。在其它条件相同的情况下,随着波高的增大,桩身最大位移点处的深度逐渐增大,桩身水平位移从桩顶到深度为13 m处逐渐减小。随着波长的增大,桩身水平位移从桩顶到深度为13 m处逐渐减小。

Numerical simulation study on the deformation of vertical revetment sheet pile

In this paper, a numerical model of the vertical revetment sheet pile is established by using the finite element software ABAQUS, the effects of elastic modulus of the sheet pile, wave height and wavelength on the horizontal displacement of the pile body are studied.The results show that the vertical revetment sheet pile moves to the side of water, the displacement of the pile increases firstly and then decreases with the depth of pile increasing.The displacement is small below the depth of 13m. The elastic modulus of pile has little effect on the displacement of the pile.Under the same conditions, as the elastic modulus of pile increases, the horizontal displacement of pile from the pile top to a depth of 13m gradually decreases, the elastic modulus has little influence on the horizontal displacement of sheet pile below the depth of 13m.Wave height and wavelength have great influence on the horizontal displacement of the pile at the depth range from 0m to 13m, and they have little influence on the horizontal displacement of sheet pile below the depth of 13m.Under the same conditions, with increasing of wave height, the depth at the maximum displacement point of pile increases gradually, the horizontal displacement of the pile from the pile top to the depth of 13m decreases gradually.With increasing of wavelength, the horizontal displacement of the pile from pile top to the depth of 13m decreases gradually.