Table 1 Loading mechanical test scheme after segmented high-temperature treatment.

From: Mechanical properties and acoustic emission characteristics of deep hard coal after segmented high-temperature treatment

Rock sample number

Height H/mm

Diameter D/mm

Density ρ/(g/cm3)

Heating temperature T/℃

Segmented height Hf/mm

BF1

99.92

49.24

1.35

  

BF2

99.84

49.21

1.36

BF3

99.88

49.27

1.45

F1-1

99.69

49.21

1.33

100

20%H

F1-2

99.86

49.35

1.38

200

F1-3

100.10

49.25

1.37

300

F1-4

99.90

49.30

1.32

400

F2-1

100.04

49.19

1.38

100

40%H

F2-2

99.69

49.17

1.33

200

F2-3

99.97

49.23

1.30

300

F2-4

99.84

49.19

1.33

400

F3-1

99.85

49.25

1.44

100

60%H

F3-2

100.07

49.29

1.42

200

F3-3

99.53

49.19

1.33

300

F3-4

100.10

49.15

1.33

400

F4-1

100.00

49.25

1.37

100

80%H

F4-2

100.07

49.22

1.31

200

F4-3

100.09

49.23

1.35

300

F4-4

99.92

49.23

1.41

400

F5-1

100.06

49.19

1.35

100

100%H

F5-2

99.91

49.28

1.30

200

F5-3

99.92

49.22

1.36

300

F5-4

99.71

49.15

1.41

400

Back to article page