›› 2010, Vol. 31 ›› Issue (3): 881-890.

• Geotechnical Engineering • Previous Articles     Next Articles

Secondary development of ABAQUS and its application to static and dynamic analyses of earth-rockfill dam

FEI Kang1，LIU Han-long2   

  1. 1. Institute of Geotechnical Engineering, Yangzhou University, Yangzhou 225009, China； 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China
  • Received:2008-09-22 Online:2010-03-10 Published:2010-03-31

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Abstract:

On the basis of subroutine UMAT provided by ABAQUS，the Duncan nonlinear elastic model for static analysis and the equivalent linear model for dynamic analysis are implemented; so the database of constitutive model in ABAQUS is enlarged. The methods to model layered construction of dam, correct the displacement of new fill layer, consider the effect of wetting effect, evaluate liquefaction resistance of dam material and compute the permanent displacement induced by earthquake are described in detail. The results of examples are found to be reasonable and reliable, it verifies that ABAQUS can be used in static and dynamic analyses of earth-rockfill dam after the secondary development. The present method can make use of the advantages of ABAQUS, such as convenient preprocessor and postprocessor, high solution precision and high ability to handle complex problems; so an alternative method for static and dynamic analyses of earth-rockfill dam is provided.

Key words: earth-rockfill dam, ABAQUS, secondary development, static analysis, dynamic analysis

CLC Number: 

  • O 245
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