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Shock and Vibration
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Shock and Vibration
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2020
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Article
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Tab 3
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Research Article
Seismic Response Study of Tunnels Running underneath a Subway Station in Parallel
Table 3
First three orders of natural frequency under different conditions (unit: Hz).
Set
First order
Second order
Third order
SS1
1.203
1.723
2.256
ST2
1.184
1.618
2.216
STS10
1.204
1.723
2.266
FF18
1.187
1.566
2.148