›› 2007, Vol. 28 ›› Issue (8): 1631-1635.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Qualitative study on mechanism of liquefaction and seepage of seabed structure silty soil under cyclic loads

CHEN You-yuan1, LIU Hong-jun1, JIA Yong-gang1, CONG Yan-ping2   

  1. 1. College of Environmental Science and Engineering, Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266003, China; 2. College of Information Science and Engineering, Ocean University of China, Qingdao 266003, China
  • Received:2005-09-27 Online:2007-08-10 Published:2013-10-15

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Abstract: The structure of the seabed silty soil in the Yellow River delta is understood by its properties and piping phenomena under cyclic loads. Applying breakage mechanics, a double-medium model composed of structural lumps and structural bands is established. During the process of increase loads, decrease loads and liquefaction seepage, deformation and breakage in the structural bands and exchange of effective stress and pore water pressure are qualitatively researched. Qualitative analysis indicates that the strength of consolidation should be increased within the depth of liquefaction, which accords with the result of test. Experiment shows that the different phenomena of liquefaction seepage are regarded as cause of existing piping in structural bands and water discharge in structural lumps with the double-medium modeling.

Key words: cyclic loads, seabed structure silty soil, double-medium model, liquefaction seepage, effective stress principle

CLC Number: 

  • TU 413.5
  • 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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