1. Beijing Key Laboratory of Track Engineering, Beijing Jiaotong University, No. 3, Shangyuancun, Haidian District, Beijing, 100044, China
2. Beijing Key Laboratory of Track Engineering, Beijing Jiaotong University, No. 3, Shangyuancun, Haidian District, Beijing, 100044, China (Corresponding author), e-mail: ypshen@bjtu.edu.cn, https://orcid.org/0000-0002-9753-9269
3. Technical Quality Department, AVIC Institute of Geotechnical Engineering Co. LTD., 56 Zhichun Rd., Haidian District, Beijing, 100098, China
4. Heilongjiang General Institute of Ecological Survey and Research, 29 Diancarbon Rd., Xiangfang District, Harbin, 150030, China