Table 13 The CO2 blasting numerical simulation results under the convex terrain.

From: Numerical simulation of topographic propagation law of vibration wave in liquid carbon dioxide phase transition fracturing blasting

Nnumber

Convex terrain height (m)

Blasting center distance (m)

Horizontal radial direction PPV(cm/s)

Vertical direction

PPV (cm/s)

Lower corner

Upper corner

Amplification coefficien β

Lower corner

Upper corner

Amplification coefficien β

1

1

10

4.58

4.61

1.01

4.50

4.83

1.07

2

3

10

3.95

5.17

1.31

4.47

5.04

1.13

3

6

10

3.61

5.69

1.58

4.46

5.81

1.30

4

9

10

3.55

5.52

1.55

2.95

5.61

1.90

5

12

10

3.45

5.29

1.53

2.35

4.90

2.09

6

15

10

3.41

4.81

1.41

2.11

3.08

1.46

7

20

10

3.38

4.07

1.20

1.95

2.67

1.37

8

9

10

3.55

5.52

1.55

2.95

5.61

1.90

9

9

12.5

2.98

4.42

1.48

2.45

4.61

1.88

10

9

15

2.55

3.62

1.42

2.13

3.86

1.81

11

9

17.5

2.42

3.35

1.38

1.83

3.28

1.79

12

9

20

2.34

3.12

1.33

1.76

3.11

1.77

13

9

25

2.15

2.58

1.20

1.74

2.78

1.60

14

9

30

1.98

2.10

1.06

1.69

2.65

1.57

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