Table 9 The predicted VLZ and Attenuation under different spacing distances.

From: A multi-parameters assessment method and prediction model for ground vibration under the high-speed railway bridge

Spacing distance

VLZ (dB)

Decrement percentage(%)

L(m)

50 m

100 m

200 m

50 m

100 m

200 m

5

81.12

78.57

75.21

–

–

–

10

78.24

75.42

72.1

3.6

4.0

4.1

15

76.7

73.44

69.93

2.0

2.6

3.0

20

75.82

72.19

68.31

1.1

1.7

2.3

25

75.31

71.42

67.16

0.6

1.1

1.7

30

75.02

70.94

66.39

0.3

0.7

1.1

35

74.85

70.66

65.9

0.2

0.4

0.7

40

74.75

70.5

65.61

0.1

0.2

0.4

45

74.7

70.41

65.45

0.06

0.1

0.2

50

74.67

70.36

65.36

0.04

0.07

0.1

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