Table 6 Rock sample failure mode.

From: Strength degradation characteristics and damage constitutive model of sandstone under freeze–thaw cycles

Sample number

Freeze–thaw cycles

Experimental figure

Mode of failure

Original figure

Sketches

Y-1-I

Conventional rock samples

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Single slope shear failure

Y-2-I

0

Single slope shear failure

Y-3-I

20

X-shaped conjugate slope shear failure

Y-4-I

40

Tensile-shear failure

Y-5-I

60

Tensile-shear failure

Y-6-I

80

Tensile-shear failure

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