›› 2006, Vol. 27 ›› Issue (8): 1299-1304.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on constitutive model and its parameter’s back analysis of creep deformation for the high rockfill embankment and their application

CAO Wen-gui1, LI Peng2, CHENG Ye1   

  1. 1.Geotechnical Engineering Institute, Hunan University, Changsha 410082, China；2.Hunan Bureau of Expressway Administration, Changsha 410076,China
  • Received:2004-11-06 Online:2006-08-10 Published:2013-11-26

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Abstract: Based on practical measuring data in engineering, the hyperbola-shaped constitutive model which has three parameters and reflects the law of creep deformation after construction for high rockfill embankment is firstly proposed by combing the mechanism of settlement with the features of engineering; and the back-analysis way that the model’s parameters are determined has been brought forward with introduction of genetic algorithm and finite element method. Afterwards，the computational means of the settlement after construction for high rockfill embankment is deeply discussed using finite element method for creep; and the relevant analytic software is developed. Finally, the application for the constitutive model proposed in this paper and the computational method of the settlement for high rockfill embankment is deeply probed by combining with the practices of engineering. It is indicated by analysis of the example of practical engineering that both the constitutive model for creep deformation and the computational means of settlement after construction are simple and reach the request of engineering practice, and a new computational method for the after-construction settlement of high rockfill embankment which is elementarily established

Key words: creep, constitutive model, genetic algorithm, finite element method, rockfill embankment, back analysis

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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