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Efficient Urban Soil Improvement Using Soil Squeezing Technology for Constrained Environments

Author

Listed:
  • 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, Pathumthani 12120, Thailand)

  • Tetsuo Iida

    (SST Association Inc., Chiba 290-0021, Japan)

  • Takeshi Yamada

    (SST Association Inc., Chiba 290-0021, Japan)

Abstract

This study introduces soil squeezing technology (SST) as an innovative approach to soil improvement that addresses the limitations of conventional methods in urban geotechnical projects. Unlike traditional in situ mixing, SST uses displacement, compaction, and controlled solidification to effectively increase soil cohesion and strength while reducing voids. By minimizing reliance on large mixing plants and bulky machinery, SST offers significant advantages in confined urban spaces, providing accessibility and operational efficiency. This paper describes the mechanism of SST, field application procedures, and adaptability to different soil types including humus and organic-rich soils. The compaction-driven approach ensures the consistent formation of dense, high-strength columnar soil structures, even in challenging geotechnical environments. Field studies demonstrate SST’s superior bearing capacity, uniformity, and reduced site disturbance compared to conventional methods, making it suitable for modern infrastructure. Quality control through real-time inspection further highlights the operational reliability of SST. This research underscores SST’s potential as a cost-effective, scalable solution that meets the stringent demands of urban development while minimizing environmental impact and optimizing resource use.

Suggested Citation

  • Shinya Inazumi & Kuo Chieh Chao & Tetsuo Iida & Takeshi Yamada, 2025. "Efficient Urban Soil Improvement Using Soil Squeezing Technology for Constrained Environments," Sustainability, MDPI, vol. 17(1), pages 1-19, January.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:1:p:317-:d:1559876
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    References listed on IDEAS

    as
    1. Boysen, Nils & Emde, Simon & Hoeck, Michael & Kauderer, Markus, 2015. "Part logistics in the automotive industry: Decision problems, literature review and research agenda," Publications of Darmstadt Technical University, Institute for Business Studies (BWL) 79443, Darmstadt Technical University, Department of Business Administration, Economics and Law, Institute for Business Studies (BWL).
    2. Boysen, Nils & Emde, Simon & Hoeck, Michael & Kauderer, Markus, 2015. "Part logistics in the automotive industry: Decision problems, literature review and research agenda," European Journal of Operational Research, Elsevier, vol. 242(1), pages 107-120.
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