›› 2008, Vol. 29 ›› Issue (8): 2051-2056.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Theoretical analysis of random wave-induced seabed response and liquefaction

WANG Zhong-tao1, LUAN Mao-tian1, JENG Dong-Sheng2, LIU Zhan-ge1   

  1. 1. State Key Laboratory of Coastal and Offshore Engineering, Institute of Geotechnical Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China; 2. School of Civil Engineering, The University of Sydney, Sydney NSW 2006, Australia
  • Received:2007-11-05 Online:2008-08-11 Published:2013-08-02

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Abstract: 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.

Key words: seabed, dynamic response, random wave, Biot’s dynamic consolidation theory

CLC Number: 

  • TU 443
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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