Table 4 Sensitivity analysis of peak volume strain.

From: Analysis of mechanical properties and energy evolution mechanism of frozen calcareous clay under multi-factor interaction

Interaction level number

Temperature /℃

Confining pressure /MPa

Water content /%

Dry density /(g/cm3)

Peak volume strain /%

A-1

−5

0.5

15

1.66

5.04

A-2

−5

1

17.5

1.86

6.90

A-3

−5

1.5

20

1.76

8.17

A-4

−5

2

12.5

1.56

14.33

B-1

−10

0.5

12.5

1.76

9.03

B-2

−10

1

20

1.56

12.98

B-3

−10

1.5

17.5

1.66

11.89

B-4

−10

2

15

1.86

12.42

C-1

−15

0.5

17.5

1.56

10.91

C-2

−15

1

15

1.76

11.92

C-3

−15

1.5

12.5

1.86

5.57

C-4

−15

2

20

1.66

12.74

D-1

−20

0.5

20

1.86

6.34

D-2

−20

1

12.5

1.66

11.98

D-3

−20

1.5

15

1.56

13.12

D-4

−20

2

17.5

1.76

8.59

R/%

2.97

4.19

1.05

5.03

 
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