Table 3 Evaluation results of Weibull distribution of pore gas escape.

From: Study on the catastrophic mechanism of slope instability induced by pore gas migration under severe drying-wetting alternation

Rainfall intensity/m·s−1

Average value/kPa

Variance

Skewness

Kurtosis

95% confidence interval/kPa

m

\(\sigma_{t0}\)

\(u_{ac}\)

Number of escape forming channel zones

3.67 × 10−6

47.012

28.624

0.665

3.31

86.069–99.444

1.95

47.379

13.259

9

5.55 × 10−6

42.036

21.766

0.667

3.475

71.891–83.868

1.479

42.992

17.392

13

1.10 × 10−5

54.328

22.582

0.663

3.307

85.138–95.683

1.952

54.681

26.05

20

2.20 × 10−5

42.511

22.092

0.604

3.195

72.576–82.636

2.041

42.589

30.621

29