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Innovative Design Method of Jet Grouting Systems for Sustainable Ground Improvements

Author

Listed:
  • Sudip Shakya

    (Graduate School of Engineering and Science, Shibaura Institute of Technology, Tokyo 135-8548, Japan)

  • Shinya Inazumi

    (College of Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan)

  • Kuo Chieh Chao

    (School of Engineering and Technology, Asian Institute of Technology, Khlong Nueng 12120, Thailand)

  • Ricky K. N. Wong

    (Sanshin Corporation, Tokyo 111-0052, Japan)

Abstract

The major focus of this study was determining the effectiveness of new construction specifications regarding the method of cement grout injection for the jet grouting system (high-pressure injection stirring method), with the objective of developing a sustainable ground improvement method. The recent innovative jet grouting techniques allow for improvement at middle pressure, but the mud discharge amount is drastically increased. This produces a serious environmental and financial burden during the disposal of mud discharge. This study attempts to develop a sustainable jet grouting method. The simulation model was prepared by the 3D AutoCAD software, and the analysis was conducted using the moving particle semi-implicit method (MPS method). The study focused on the changes that occurred in the mixing ratio of cement slurry and soil due to the changes made in cement milk spraying during the construction phase and compared it with the traditional method of cement milk spraying. All other construction parameters were kept the same for both cases, and the comparison result shows that the modified construction specification provides a denser and larger improved soil body than the traditional method. Furthermore, the density of the number of particles was determined at the upper, middle, and lower portions of the improved body for comparison.

Suggested Citation

  • Sudip Shakya & Shinya Inazumi & Kuo Chieh Chao & Ricky K. N. Wong, 2023. "Innovative Design Method of Jet Grouting Systems for Sustainable Ground Improvements," Sustainability, MDPI, vol. 15(6), pages 1-16, March.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:6:p:5602-:d:1104569
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    References listed on IDEAS

    as
    1. Koki Nakao & Shinya Inazumi & Tsuyoshi Takahashi & Supakij Nontananandh, 2022. "Numerical Simulation of the Liquefaction Phenomenon by MPSM-DEM Coupled CAES," Sustainability, MDPI, vol. 14(12), pages 1-14, June.
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    Cited by:

    1. Shinya Inazumi & Sudip Shakya, 2024. "A Comprehensive Review of Sustainable Assessment and Innovation in Jet Grouting Technologies," Sustainability, MDPI, vol. 16(10), pages 1-20, May.

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