Abstract
The consolidation status of a seabed under marine structures and hydrostatic pressure is the basis for the evaluation of the liquefaction and dynamic shear failure of seabed foundation under ocean wave loading. However, only a few investigations have been conducted for the seabed consolidation under hydrostatic pressure and marine structures. Furthermore, most previous numerical models for the Biot's consolidation theory are limited to two-dimensional cases. In this study, based on Biot's dynamic poro-elastic theory ("u-p" approximation), a three-dimensional FEM seabed model is adopted to investigate the consolidation of seabed under a rubble mound breakwater and hydrostatic pressure. Numerical results show that the rubble mound breakwater significantly affect the stress/displacement fields in the seabed foundation. Based on the parametric study, it can be concluded: (1) Young's modulus of a seabed significantly affects the settlement of breakwater; and (2) the magnitude of the shear stress concentrates in the zones beneath the toes of breakwater. (C) 2012 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 48-59 |
| Number of pages | 12 |
| Journal | Ocean Engineering |
| Volume | 53 |
| DOIs | |
| Publication status | Published - 15 Oct 2012 |
