Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2012 , Vol. 46 >Issue 10: 1553 - 1557

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2012.10.004

Dynamic Response of the Sandy Seabed to Combined Wave and Current Loading

Expand
  • 1.Department of Civil Engineering
    2.Center for Marine Geotechnical Engineering Research, Shanghai Jiaotong University, Shanghai 200240, China

Received date: 2011-10-14

  Online published: 2012-10-30

Fold

Abstract

Based on two-phase u-p theory for saturated soil, a new constitutive model based on the super/ sub-loading surface and anisotropy was utilized to analyze the dynamic responds of a sandy seabed under the combined wave and current loadings. Firstly, a poro-elastoplastic model for a sandy seabed was established. The mechanics of oscillatory excess pore water pressure in seabed and residual excess pore pressure due to wave/ current were discussed and the liquefaction depth which changes correspondingly was obtained. A comparison between the elastic and elatoplastic sandy seabed's dynamic responds to wave/current loading was also presented.

Key words： two-phase mixture theory; wave/current; sandy seabed; wave parameter; liquefaction depth; elastoplastic model

Cite this article

CUI Song, ZHENG Dong-sheng, YE Guan-lin, XIA Xiao-he, WANG Jian -hua . Dynamic Response of the Sandy Seabed to Combined Wave and Current Loading[J]. Journal of Shanghai Jiaotong University, 2012 , 46(10) : 1553 -1557 . DOI: 10.16183/j.cnki.jsjtu.2012.10.004

References

[1] Sekiguchi H, Kita K, Okamoto O. Response of poroelasto-plastic beds to sanding waves[J]. Soils and Foundations, 1995, 35(3): 31-42.
[2] Jeng D S, Seymour B R, Li J. A new approximation for pore pressure accumulation in marine sediment due to water wave[J]. Numerical and Analytical Methods in Geomechanics, 2007, 31: 53-69.
[3] 栾茂田, 张晨明, 王栋, 等. 波浪作用下海床孔隙水压力发展过程与液化的数值分析[J]. 水力学报, 2004(2): 94-100.
[3] LUAN Mao-tian, ZHANG Chen-ming, WANG Dong, et al. Numerical analysis of residual pore water pressure development and evaluation of liquefaction potential of seabed under wave loading[J]. Journal of Hydraulic Engineering, 2004(2): 94-100.
[4] 王立忠, 潘冬子, 潘存鸿, 等. 波浪对海床作用的试验研究[J]. 土木工程学报, 2007, 40(9): 101-110.
[4] WANG Li-zhong, PAN Dong-zi, PAN Cun-hong, et al. Experimental investigation on wave-induced response of seabed[J]. China Civil Engineering Journal, 2007, 40(9): 101-110.
[5] Zienkiewicz O C, Shiomi T. Dynamic behavior of saturated porous media: The generalized Biot formulation and its numerical solution[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 1984, 8(1): 71-96.
[6] Zhang F, Ye B, Noda T, et al. Explanation of cyclic mobility of soils: Approach by stress-induced anisotropy[J]. Soils and Foundations, 2007, 47(4): 635-648.
[7] Biot M A. Mechanics of deformation and acoustic propagation in porous media[J]. Journal of Applied Physics, 1962, 33(4): 1482-1498.
[8] Hsu H C, Chen Y Y, Hsu J R C, et al. Non-linear water waves on uniform current in lagrangian coordinates[J]. Journal of Nonlinear Mathematical Physics, 2009, 16(1): 47-61.
[9] Zhang F, Ye B, Ye G L. Unified description of sand behavior[J]. Archit Civ Eng China, 2011, 5(2): 121-150.
Options
Outlines

/

〈 〉