The mechanism of crack propagation during frost heave damage in fractured rock mass at low temperature

Wang, Tingting; Tang, Chun’an; Tang, Shibin; Bao, Chunyan; Li, Yang; Fan, Nan

doi:10.1007/s12517-021-07827-4

Cited by 6 publications

(2 citation statements)

References 36 publications

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“…However, in practical engineering, rocks contain various joint fissures. Under low-temperature freezing conditions, the volume expansion the joint filling and freezing of the crack water in a fractured rock mass may generate a frost heave force [ 8 , 9 ]. Frost heaving and wedging may expand internal cracks in rock masses, increase porosity and cause irreversible damages [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Research on triaxial compressive mechanical properties and damage constructive model of post-thawing double-fractured quasi-sandstones with different angles

Yun,

Ren,

Zhang

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Research on triaxial compressive mechanical properties and damage constructive model of post-thawing double-fractured quasi-sandstones with different angles

Yun,

Ren,

Zhang

et al. 2024

Heliyon

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“…The fissure tip produces stress concentration when the ice volume expands. Once the stress exceeds the tensile strength of the rock mass, various mesoscopic and 2 of 20 macroscopic cracks initiate, expand and penetrate [13][14][15][16]. Therefore, after the artificial frozen wall is thawed, during the period when the surrounding rock is melted without grouting or the grouting is basically without strength, the structure of the surrounding rock is seriously damaged, and its mechanical properties are significantly reduced.…”

Section: Introductionmentioning

confidence: 99%

Triaxial Compression Fracture Characteristics and Constitutive Model of Frozen–Thawed Fissured Quasi-Sandstone

et al. 2022

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The artificial frozen wall crossing the water-rich sand layer is prone to failure during thawing. To study the loading fracture characteristics and damage evolution of single-fissured sandstone after thawing, quasi-sandstones with prefabricated single fissure at different angles were prepared using the sandstone of the Luohe Formation as the original rock to conduct freeze–thaw tests with various temperature differences, and triaxial compression tests were performed on the samples. Based on the distribution theory of rock micro-element strength and static elastic modulus, a damage constitutive model of single-fissured quasi-sandstone under freezing–thawing and confining pressure was established. The results show that with the decrease in freezing temperature, the amount of flake spalling on the sample surface increases, and the frost-heaving cracks of quasi-sandstone become more numerous and longer, which makes the single-fissured quasi-sandstone tend to have a more complex tensile–shear hybrid failure than a shear failure. Moreover, with the increase in fissure angle, the absolute value of the freezing temperature required to produce frost-heaving cracks increases. An S-shaped damage evolution curve corresponds to each stage of triaxial compression of single-fissured quasi-sandstone. With the decrease in freezing temperature, the strength of rock after thawing decreases, and the brittleness characteristics strengthen.

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Analysis of stress intensity factor for moving Griffith crack in a transversely isotropic strip under punch pressure

Singh,

Yadav

et al. 2024

Arab J Geosci

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The mechanism of crack propagation during frost heave damage in fractured rock mass at low temperature

Cited by 6 publications

References 36 publications

Research on triaxial compressive mechanical properties and damage constructive model of post-thawing double-fractured quasi-sandstones with different angles

Research on triaxial compressive mechanical properties and damage constructive model of post-thawing double-fractured quasi-sandstones with different angles

Triaxial Compression Fracture Characteristics and Constitutive Model of Frozen–Thawed Fissured Quasi-Sandstone

Analysis of stress intensity factor for moving Griffith crack in a transversely isotropic strip under punch pressure

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