J. Fei, Y. Jie, C. Hong, and C. Yang, “Comparative Analysis of Design Parameters for High-Speed Railway Earthworks in Different Countries and a Unified Definition of Embankment Substructure”, BJRBE, vol. 15, no. 2, pp. 127–144, Jun. 2020, doi: 10.7250/bjrbe.2020-15.476.