Shock and Vibration / 2018 / Article / Tab 2

Research Article

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

Table 2

Selection of attenuation index for different physical sources from the literature.

Physical sourcesType of sourceWave typeAttenuation index

Line source [3]LineRayleigh0
Body0.5
Point source [3] PointRayleigh0.5
Body1.0
Short length and high speed train [4]LineBody1.5
Long length and slow speed train [4]LineBody1.0

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