›› 2010, Vol. 31 ›› Issue (8): 2682-2688.

• Numerical Analysis • Previous Articles    

Numerical analysis of effect of waterproof measures on earthquake induced liquefaction of embankment

XIA Zhi-fan 1,2，YE Guan-lin1, WANG Jian-hua1，YE Bin3, ZHANG Feng4   

  1. 1.Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, China; 2.Nanchang Institute of Technology, Nanchang 330099,China ; 3.Geo-Research Institute, Osaka, Japan; 4.Nagoya Institute of Technology, Nagoya, Japan
  • Received:2009-02-25 Online:2010-08-10 Published:2010-08-30

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Abstract:

The earthquake induced liquefaction of embankment is analyzed using the effective-stress based fully coupled dynamic analysis method. Special emphasis is given to discuss the effect of waterproof carpet paved on the slope of the upstream. The behaviors of the foundation soils are described by means of a cyclic mobility constitutive model which was developed at the bases of modified Cam model by introducing concepts such as stress-induced anisotropy, over-consolidation, and structure. Results show that the phreatic line become lower due to the effect of the waterproof carpet, which increases the initial effective stress of dam foundation and reduces the possibility of liquefaction. Furthermore, the deformation is reduced effectively.

Key words: earthquake induced liquefaction, cyclic mobility, fully coupled analysis method, concrete face slab dam

CLC Number: 

  • TU 0241
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