Theoretical analysis of random wave-induced seabed response and liquefaction

被引：0

作者：

Wang Zhong-tao ^{[1
]}

Luan Mao-tian ^{[1
]}

Jeng Dong-sheng ^{[2
]}

Liu Zhan-ge ^{[1
]}

机构：

[1] Dalian Univ Technol, Inst Geotech Engn, Sch Civil & Hydraul Engn, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

[2] Univ Sydney, Sch Civil Engn, Sydney, NSW 2006, Australia

来源：

ROCK AND SOIL MECHANICS | 2008年 / 29卷 / 08期

关键词：

seabed; dynamic response; random wave; Biot's dynamic consolidation theory;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Based on general Biot's dynamic consolidation theory, a simple analytical model for simulating random wave-induced seabed response and liquefaction is established and solved together with stable and effective algorithm. The influence of random wave loading is investigated by comparing with the corresponding linear regular wave results with similar representative parameters. The results of comparison show that the distributions of amplitudes of pore wave pressure and effective stresses along depth in seabed are similar by using two different wave theories, but the dynamic response of seabed under random wave loading shows clear irregularity, and these amplitudes are greater than those under linear regular wave loading on the same quantity level. Compared with the liquefaction depth induced by linear regular wave loading, the result computed with random wave theory is much deeper. Therefore, the stochastic feature of random wave loading has to be duly taken into account in evaluation of safety and stability of various marine structures and offshore facilities.

引用

页码：2051 / +

页数：7

共 10 条

[1]

BIOT M A., 1960, J ACOUST SOC AM, V12, P168

[2] General theory of three-dimensional consolidation [J].