Table 3 Stress-strain relationship of materials in the extraction zone.

From: The energy and stress evolution law of surrounding rock in gob side entry driving of adjacent mining faces

Strain

Stress/MPa

Strain

Stress/MPa

0.00

0.00

0.09

26.26

0.01

1.49

0.10

33.13

0.02

3.18

0.11

42.15

0.03

5.10

0.12

54.53

0.04

7.31

0.13

72.56

0.05

9.87

0.14

101.12

0.06

12.89

0.15

154.00

0.07

16.49

0.16

283.07

0.08

20.85

  
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