Shock and Vibration / 2018 / Article / Fig 18

Research Article

Vibration Characteristics of Underground Structure and Surrounding Soil Underneath High Speed Railway Based on Field Vibration Tests

Figure 18

(a) Autocorrelation curve after the NExT processing and (b) its PSD frequency spectrum for measurement point W2 with natural excitation in the night.
(a)
(b)

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