Experimental Study on the Dynamic Characteristics of a New Long-Short Pile Composite Foundation under Long-Term Train Load

Table 3

Test loading condition.

Cases	Dead load 0 (kN)	Amplitude a (kN)	Frequency f (Hz)	Simulated train speed (km/h)	Cycles
1	3	0.5	3.904	80	2 × 10^4
2	3	0.5	5.856	120	2 × 10^4
3	3	0.5	7.808	160	2 × 10^4
4	3	0.5	9.760	200	2 × 10^4
5	3	0.5	11.712	240	2 × 10^4
6	3	0.5	13.664	280	2 × 10^4
7	3	0.5	15.616	320	2 × 10^4
8	3	0.5	17.568	360	2 × 10^4