Table 6 The relationship between backfill deformation and cohesion and friction angle.

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

Strain

Cohesion/MPa

Friction angle/(°)

0

5.5

32

0.01

2

28

0.1

1.6

24

0.2

1.3

22

0.3

1

20

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