Table 1 Sample number and sampling depth.

From: Effect of different buried depth on the disintegration characteristic of red-bed soft rock and the evolution model of disintegration breakage under cyclic drying-wetting

Lithology

Sample Number

Sampling depth (m)

Dry density (g/cm3)

Natural moisture content (%)

Porosity (%)

Argillaceous siltstone of Huizhou formation

X1

9.80–9.90

2.323

1.72

8.22

X2

19.80–19.90

2.503

1.57

7.39

X3

29.80–29.90

2.582

1.38

6.97

X4

39.80–39.90

2.610

1.32

6.65

X5

49.80–49.90

2.618

1.30

6.39

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