Effect of Wave Nonlinearity on the Instantaneous Seabed Liquefaction

作     者：WANG Zhao-jun SUI Ti-ti ZHANG Chi PAN Jun-ning WANG Zhao-jun;SUI Ti-ti;ZHANG Chi;PAN Jun-ning

作者机构：Key Laboratory of PortWaterway and Sedimentation Engineering of the Ministry of TransportNanjing Hydraulic Research InstituteNanjing 210024China Key Laboratory of Coastal Disaster and Protection(Hohai University)Ministry of EducationNanjing 210098China The National Key Laboratory of Water Disaster PreventionNanjing 210098China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2024年第38卷第1期

页      面：93-103页

核心收录：

学科分类：081505[工学-港口、海岸及近海工程] 07[理学] 0707[理学-海洋科学] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：financially supported by the National Key Research and Development Program of China(Grant Nos.2021YFB2600700 and 2022YFC3102302) the Central Public-Interest Scientific Institution Basal Research Fund(Grant No.Y221007) the National Natural Science Foundation of China(Grant No.52271274) the Key Laboratory of Ministry of Education for Coastal Disaster and Protection,Hohai University(Grant No.202205) the Key Project of NSFC-Shandong Joint Research Funding POW3C(Grant No.U1906230) 

主　　题：nonlinear wave seabed response seabed liquefaction numerical simulation liquefaction prediction 

摘      要：The nonlinear variation of wave is commonly seen in nearshore area,and the resulting seabed response and liquefaction are of high concern to coastal *** this study,an analytical formula considering the nonlinear wave skewness and asymmetry is adopted to provide wave pressure on the seabed *** liquefaction depth attenuation coefficient and width growth coefficient are defined to quantitatively characterize the nonlinear effect of wave on seabed *** on the 2D full dynamic model of wave-induced seabed response,a detailed parametric study is carried out in order to evaluate the influence of the nonlinear variation of wave loadings on seabed ***,new empirical prediction formulas are proposed to fast predict the maximum liquefaction under nonlinear *** indicate that(1)Due to the influence of wave nonlinearity,the vertical transmission of negative pore water pressure in the seabed is hindered,and therefore,the amplitude decreases significantly.(2)In general,with the increase of wave nonlinearity,the liquefaction depth of seabed decreases *** under asymmetric and skewed wave loading,the attenuation of maximum seabed liquefaction depth is the most significant among all the nonlinear wave ***,highly skewed wave can cause the liquefaction depth of seabed greater than that under linear wave.(3)The asymmetry of wave pressure leads to the increase of liquefaction width,whereas the influence of skewedness is not significant.(4)Compared with the nonlinear waveform,seabed liquefaction is more sensitive to the variation of nonlinear degree of wave loading.