Research on Cumulative Deformation Characteristics of Subgrade Filling under Cyclic Train Loading

Table 2

Plastic cumulative deformation characteristics of filling under different dynamic loads.

Dynamic Load(kN)	0.3	0.8	1	1.5	2	2.4	3	3.4	4
Dynamic stress 2 (kPa)	16.9	45.3	56.7	84.9	113.2	135.8	169.8	192.4	226.4
Plastic deformation trend	Initial compaction		Stabilization						Rapid destruction
			Stage
Accumulated plastic strain(%)	0.034	0.032	0.013	0.007	0.012	0.019	0.022	0.022	0.160