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Numerical Investigation on the Stability of Soil-Cement Columns Reinforced Riverbank

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Information Technology in Geo-Engineering (ICITG 2019)

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Abstract

This paper presents a numerical study on the stability of columns reinforced riverbank along a river delta region in Viet Nam. First, an array of numerical analyses based on the limit equilibrium method (LEM) incorporated in GeoSlope was conducted on a typical geometry of a riverbank reinforced without or with soil-cement columns in a two-dimensional plane strain condition to estimate the riverbank safety factor. The beneficial effects of column reinforcement of the riverbank stability have been analysed and discussed in detail. Subsequently, another series of parametric study on the influence of a number of columns and the shear strength parameters of columns on the riverbank stability has also been performed and thoroughly discussed to provide a better understanding of the interaction between columns and soil along the riverbank. The numerical findings show that the columns reinforcement of riverbank can significantly enhance the riverbank stability by means of the safety factor improvement. The predicted results also indicate that the increase in the number of columns increased the riverbank safety factor subjected to a constant river water level. Moreover, the shear strength parameters of soil-cement columns were found to have notable effects on the stability of riverbank reinforced with columns.

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Authors and Affiliations

  1. Faculty of Civil Engineering, Ho Chi Minh City University of Technology, VNU-HCM, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Viet Nam

    Cong Chi Dang

  2. School of Civil and Environmental Engineering, University of Technology Sydney (UTS), 15 Broadway, Ultimo, NSW, 2007, Australia

    Liet Chi Dang

Authors
  1. Cong Chi Dang
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  2. Liet Chi Dang
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Correspondence to Liet Chi Dang .

Editor information

Editors and Affiliations

  1. School of Engineering, ISISE, University of Minho, Guimarães, Portugal

    António Gomes Correia

  2. School of Engineering, ISISE, University of Minho, Guimarães, Portugal

    Joaquim Tinoco

  3. School of Engineering, ALGORITMI, University of Minho, Guimarães, Portugal

    Paulo Cortez

  4. Laboratório Nacional de Engenharia Civil, Lisboa, Portugal

    Luís Lamas

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Dang, C.C., Dang, L.C. (2020). Numerical Investigation on the Stability of Soil-Cement Columns Reinforced Riverbank. In: Correia, A., Tinoco, J., Cortez, P., Lamas, L. (eds) Information Technology in Geo-Engineering. ICITG 2019. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-030-32029-4_74

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  • DOI: https://doi.org/10.1007/978-3-030-32029-4_74

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-32028-7

  • Online ISBN: 978-3-030-32029-4

  • eBook Packages: EngineeringEngineering (R0)

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