›› 2008, Vol. 29 ›› Issue (8): 2226-2230.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

3D numerical simulation of large ground displacement caused by seismic liquefaction

TONG Li-yuan1, WANG Bin1, LIU Yi-huai2, ZHANG Bo3   

  1. 1. School of Transportation, Southeast University, Nanjing 210096, China; 2. Jiangsu Expressway Construction Headquarters, Nanjing 210004, China; 3. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2007-03-29 Online:2008-08-11 Published:2013-08-02

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Abstract: The large ground displacement caused by seismic liquefaction is one of the main reasons which induce the failure of engineering structures. According to the typical three-layer foundation at sloping field, the process of the ground displacement due to liquefaction is analyzed by using FLAC 3D. The numerical simulation considers the main effecting factors, including the earthquake, topography, soil and groundwater characteristics. The results indicate that lateral displacements become larger when the gradients of the free face and ground surface increase. The lateral displacement of the site with variational gradients is larger than that of the site with single gradient. The surface lateral displacement, subsidence and upheaval become more serious when the ground maximal acceleration and earthquake time increase. The burying depth, thickness of the liquefaction layer and the ground water level affect the large ground displacement also. So, the reasonable ground improvement scheme should be considered according to the actual conditions.

Key words: seismic liquefaction, large ground displacement, numerical simulation

CLC Number: 

  • TU 435
  • 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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