Research Article

Experimental Study on Cumulative Plastic Deformation of Coarse-Grained Soil High-Grade Roadbed under Long-Term Vehicle Load

Table 5

Calculation parameters of the subgrade pavement materials.

Material parametersElastic modulus (Pa)Poisson’s ratio

Surface layer1.4 × 1090.25
Basic layer8.0 × 1080.25
Road base1.0 × 1080.3
Soil base2.0 × 1070.33