Three-Dimensional Dynamic Analyses of Track-Embankment-Ground System Subjected to High Speed Train Loads

Table 1

Material parameters of finite simulation.

Material	𝐸/Pa	𝜇	𝜌/kg/m^3	𝑉𝑆	𝑉𝑅
Ballast	3.89𝐸+8	0.3	2200	260.8	241.9
Embankment	2.5𝐸+8	0.3	1800	231.1	214.4
Fill	9.075𝐸+7	0.3	1800	138.7	128.6
Clay	25.36𝐸+86	0.35	1600	76.6	71.6
Stiff sand	1𝐸+8	0.3	1800	146.2	135.6
Rail	2.1𝐸+11	0.17	7800	3392	3074.2
Sleeper	2𝐸+10	0.2	2500	1826	1664.5

Note: 𝐸 is Young’s modulus; 𝜌 is density; 𝜇 is Poisson’s ratio; 𝑉_𝑆 and 𝑉_𝑅 are shear and Rayleigh wave speeds, respectively.