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Influence of normal stress on the adfreeze interface on adfreeze shear strength of frozen soil



Influence of normal stress on the adfreeze interface on adfreeze shear strength of frozen soil



Seppyo = Journal of the Japanese Society of Snow and Ice 66(2): 197-205



Adfreeze shear strength between frozen soil and construction material is an important mechanical property to maintain cutoff of ground water during excavation by the ground freezing technique. However, adfreeze shear strength for design is not confirmed because the influence of normal stress on the adfreeze interface, which depends on excavation depth on site, is unknown. Adfreeze shear tests with normal stress on the adfreeze interface between frozen soil and steel plate are performed. The larger the normal stress, the larger the adfreeze shear strength of frozen sand or frozen clay to steel plate. The increase in gradient of frozen sand is larger than that of frozen clay. Adfreeze shear strength is larger with normal stress on the interface between soil and steel plate before freezing. Furthermore, static friction power between frozen soil and steel plate contributes to increase of adfreeze shear strength. Normal stress is more influential on adfreeze shear strength of frozen soil with larger internal friction angle.

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Accession: 019203976

Download citation: RISBibTeXText

DOI: 10.5331/seppyo.66.197


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