›› 2006, Vol. 27 ›› Issue (S1): 1027-1031.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A method for numerical analysis of seismic liquefaction induced large deformation of sloping soil layer

SHAO Guang-biao1, WANG Hua-juan2   

  1. 1. College of Civil Engineering, Shandong University of Architecture, Jinan 250101, China; 2. Engineering College, Ocean University of China, Qingdao 266071, China
  • Received:2006-07-26 Published:2006-12-15

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Abstract: Sloping soil layer will be liquefied and yield large deformation under earthquake vibration. Based on finite element theory, a numerical method is studied for seismic liquefaction induced large deformation of gentle inclined soil layer. In this method, Liquefaction analysis is performed by two-dimensional dynamic effective stress finite element method, and in each time segment of the analysis, modulus of soil elements are achieved considering soil liquefaction and vibrated soften; then large deformation of soil layer is calculated by nonlinear static method in the end of each time segment, horizontal and vertical displacements are acquired in any depth of soil layer at last. By examples, the influences on large deformation are studied with different earthquake accelerations and slope angle. Compared with the results of other researches, the validity of the new method is confirmed; and it is applicable to solutions of earthquake geological hazards evaluating in engineering field.

Key words: sloping soil layer, liquefaction, large deformation, softened modulus, lateral displacement

CLC Number: 

  • TU 433
  • 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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