Exploring strength deterioration mechanism of soil-rock mixture based on pore structure characteristics under freeze–thaw cycles

Tang, Liyun; Lu, Zihan; Zhao, Tao; Li, Zhuo; Qiu, Peiyong; Yu, Yongtang; Jin, Long; Li, Yongqiang; Jia, Hailiang

doi:10.1016/j.coldregions.2023.104040

Cold Regions Science and Technology

2024

DOI: 10.1016/j.coldregions.2023.104040

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Exploring strength deterioration mechanism of soil-rock mixture based on pore structure characteristics under freeze–thaw cycles

Liyun Tang,

Zihan Lu,

Tao Zhao

et al.

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Cited by 3 publications

References 34 publications

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Damage mechanism and energy evolution of frozen soil under coupled compression–shear impact loading

Zhu,

Zhang,

Wang

et al. 2025

Cold Regions Science and Technology

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Damage mechanism and energy evolution of frozen soil under coupled compression–shear impact loading

Zhu,

Zhang,

Wang

et al. 2025

Cold Regions Science and Technology

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A study of uniaxial compressive strength degradation model of soil-rock mixtures under freeze-thaw deterioration based on equivalent model characteristics of conductive paths

Tian,

Deng,

Zhao

et al. 2024

Construction and Building Materials

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Experimental study on the shear mechanical behavior of ice-rich debris–rock interface: effects of temperature, stress, and ice content

Huang,

Meng,

Song

et al. 2024

Can. Geotech. J.

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Glacier collapses can occur due to shear failure at the ice-rich debris-rock interface (IDRI). In order to examine the shear behavior of IDRI, shear tests were conducted on artificial IDRI specimens with varying ice contents (40%, 65%, and 90%), normal stresses (150, 250, 350, 450, and 550 kPa), and temperatures (-1, -3, -5, -7, -9 °C). Our findings reveal that temperature has the most significant impact on both peak and residual shear strength, followed by normal stress and ice content. As the temperature increases from -9 to -1 °C, the peak and residual shear stress decrease by 62.5% to 78%. Notably, for IDRI with the lowest ice content (40%), the residual shear stress is highly influenced by normal stress. We have developed an improved Mohr-Coulomb strength criterion of IDRI, in which the cohesion and internal friction angle are determined by ice content and temperature. Furthermore, we propose a novel constitutive model, based on the disturbed state concept, to describe the shear behavior of IDRI. This model combines a spring model and a hyperbolic model. We also discuss the mechanisms through which ice content and temperature influence the shear deformation modes and shear strength of IDRI.

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Exploring strength deterioration mechanism of soil-rock mixture based on pore structure characteristics under freeze–thaw cycles

Cited by 3 publications

References 34 publications

Damage mechanism and energy evolution of frozen soil under coupled compression–shear impact loading

Damage mechanism and energy evolution of frozen soil under coupled compression–shear impact loading

A study of uniaxial compressive strength degradation model of soil-rock mixtures under freeze-thaw deterioration based on equivalent model characteristics of conductive paths

Experimental study on the shear mechanical behavior of ice-rich debris–rock interface: effects of temperature, stress, and ice content

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