Table 2 Statistics of occurrence frequency for different main frequencies.

From: Study on the vibration characteristics and influence range of buried dam pipeline

Operating condition

Main frequency (Hz)

0–10

18.2

24.8

32.75

38.41

74.36

83.38

> 90

1

1

0

6

2

0

5

2

2

2

2

2

4

0

3

3

1

3

3

5

2

3

2

0

4

0

1

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