Investigation on Dynamic Stability of Cement-Stabilized Expansive Soil Subgrades Subjected to Repeated Heavy-Haul Train Loads

Table 9

Maximum dynamic elasticity moduli and maximum damping ratio.

f (Hz)	σ3 (kPa)	Virgin expansive soil (MPa)		Expansive soil stabilized with 3% cement content (MPa)		Expansive soil stabilized with 5% cement content (MPa)
		Edmax	λmax	Edmax	λmax	Edmax	λmax
1	15	68.68	31.21	184.84	25.16	243.90	26.77
	30	84.53	27.33	207.47	21.73	270.27	22.55
	60	—	—	234.74	17.56	285.71	18.76
5	15	79.11	38.21	215.05	29.14	270.27	28.15
	30	102.25	36.87	238.10	25.37	297.62	25.32
	60	—	—	242.72	19.33	322.58	17.59