Study on the Mechanical Characteristics of Large Shear Deformation of Lightweight Soil Solidified by Blowing and Filling with High Moisture Content
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College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
Key Laboratory of Soft Soil Characteristics and Engineering Environment of Tianjin, Tianjin Chengjian University, Tianjin 300384, China
Shanghai Youyuan Construction Engineering Co., Ltd., Shanghai 201507, China
Anhui Ronggong Boda Environmental Protection Technology Materials Research Institute Co., Ltd., Ma'anshan 243002, China
Submission date: 2023-10-16
Final revision date: 2023-10-26
Acceptance date: 2023-11-08
Online publication date: 2024-02-06
Publication date: 2024-03-18
Corresponding author
Aiwu Yang   

College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
Pol. J. Environ. Stud. 2024;33(3):2933-2939
This article centers its investigation on high-moisture-content solidified lightweight soil in the Binhai New Area of Tianjin. It examines the shear mechanical properties under conditions of significant deformation, supplying pertinent reference values and theoretical foundations for engineering practice. The results demonstrate that the curve for solidified lightweight soil under substantial shear conditions manifests a strain-softening tendency. As normal stress escalates, both peak and residual strength increase while the degree of softening diminishes. The peak strength envelope at varying shear rates forms an upward zigzagging line, with the bending degree of the line augmenting as the rate increases. As the shear rate elevates, the cohesive strength within the peak strength parameters intensifies, the internal friction angle remains constant, and the residual strength parameters remain unaffected by the shear rate. This furnishes theoretical guidance for the applied engineering of blown-cured lightweight soil.
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