Table 2 Damage model accuracy assessment.

From: Compression strength and damage model of frozen silty clay in Xing’an Baikal permafrost under temperature effects

Temp (℃)

− 0.5

− 1.0

− 2.0

− 3.0

− 5.0

− 7.5

RMSE

27.67

32.94

69.80

92.00

261.70

168.49

MAE

23.88

28.45

58.19

74.77

141.20

128.96

R2

0.14

0.13

0.11

0.94

0.85

0.92