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A study of deep excavation using cement deep mixing in Mekong river delta area

  • Nguyen Bao VietEmail author
  • Vu Cong Thanh
  • Nguyen Thanh Son
  • Nguyen Hoang Viet
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 62)

Abstract

In this paper, two soil constitutive models namely Mohr-Coulomb (MC) and Soft Soil (SS) models were used to simulate the behaviour of a deep excavation whose retaining wall and the base were improved by cement deep mixing (CDM) columns. In addition, properties of the structures improved by CDM columns were modelled in four different levels of detailing based on the equivalent method. The computed lateral displacements of the top of the retaining wall were compared with the monitored values. The numerical results revealed that MC model is competent at accurately predicting the displacement of retaining walls with monitored than that of SS model. Last but not least, the details in modelling based on the equivalent method was less effects on the results with the different under 10% even the time spent for each of them was quite different.

Keywords

deep excavation cement deep mixing  FEM modeling  monitored displacement  

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References

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Nguyen Bao Viet
    • 1
    Email author
  • Vu Cong Thanh
    • 2
  • Nguyen Thanh Son
    • 3
  • Nguyen Hoang Viet
    • 1
  1. 1.National University of Civil EngineeringHanoiVietnam
  2. 2.Institute of Construction for Offshore Eng.HanoiVietnam
  3. 3.National Taiwan University of Science and Tech.TaipeiTaiwan

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