Efficient Urban Soil Improvement Using Soil Squeezing Technology for Constrained Environments

Shinya Inazumi (), Kuo Chieh Chao, Tetsuo Iida and Takeshi Yamada
Additional contact information
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

Sustainability, 2025, vol. 17, issue 1, 1-19

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.

Keywords: soil squeezing technology (SST); urban soil improvement; compaction based stabilization; sustainable geotechnical engineering; constrained construction environments (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/17/1/317/pdf (application/pdf)
https://www.mdpi.com/2071-1050/17/1/317/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:17:y:2025:i:1:p:317-:d:1559876

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().