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MICP-Reinforced Soil Under Three-Dimensional Grout Injection Condition

  • Authors (legacy)
    Corresponding: Jie Peng
    Co-authors: Hu Yang, Jie Peng, Jie Li, and Gaoqiang Xie
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  • gnest_03374_published.pdf
  • Paper ID
    gnest_03374
  • Paper status
    Published
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.003374
Graphical abstract
Abstract

The use of microbial-induced carbonate precipitation (MICP) in soil reinforcement has attracted attention in the academic field in recent years. However, most of the existing studies have been conducted based on one-dimensional ( ) grout injection condition. The present study conducted in vitro and sand column experiments of MICP using a ureolytic bacterium (ATCC 11859) (three-dimensional ( ) and models were considered in the sand column experiments) as well as the feasibility and reinforcing effect of the MICP grout injection method. A comparison of the and grout injection methods showed that the specimens reinforced using the grout injection method had higher strength, better homogeneity, a greater content, and a larger permeability coefficient compared with the specimens reinforced using the grout injection method. The limitations of the model should be considered in future practical applications.

Keywords
MICP reinforced microbial-induced ureolytic bacterium grout injection
Cite this article
Jie, P., Hu, Y. and Gaoqiang, X. (2020) “MICP-Reinforced Soil Under Three-Dimensional Grout Injection Condition”, Global NEST Journal, 22(4). Available at: https://doi.org/10.30955/gnj.003374.
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  • gnest_03374_published.pdf