Table 8 Creep parameters obtained by fitting the best two considered analytical models, such as Power-law creep followed by Burger creep, recorded for the homogeneous rock salt facies (Temperature: 27 °C = 300K).

From: Salt rock creep deformation forecasting using deep neural networks and analytical models for subsurface energy storage applications

MSTL creep data stages

Confining pressure (MPa)

Differential axial stress (MPa)

Total axial stress (MPa)

Creep duration (days/hour sample)

Power law creep

Burger creep

C (day−n)

k (−)

B1 (−)

B2 (*1.16.104s1)

k2 (day−1)

Stage 1

5

8

13

5.8/141

0.10

0.44

0.10

0.022

2.64

Stage 2

15

8.2

23.2

5.8/143

0.04

0.58

0.05

0.011

1.09

Stage 3 (in-situ)

25

8.4

33.4

22/520

0.04

0.58

0.07

0.008

0.57

Stage 4

35

8.6

43.6

9/216

0.04

0.53

0.03

0.010

2.40

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