Shock and Vibration / 2018 / Article / Fig 20

Research Article

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

Figure 20

(a) The time history of the acceleration for measurement points G1 to G4 after 5000 seconds continuous acquisition, (b) autocorrelation function after the NExT processing for G1, and (c) PSD frequency spectrum of signal in (b).
(a)
(b)
(c)

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