1. State Key Laboratory of Performance Monitoring and Guarantee of Rail Transportation Infrastructure, East China Jiaotong Univ., Nanchang, Jiangxi 330013, China; Institute of Geotechnical Engineering, School of Civil Engineering and Architecture, East China Jiaotong Univ., Nanchang, Jiangxi 330013, China.
2. Engineering College, Zhejiang Univ. City College, Hangzhou, Zhejiang, 310015, China.
3. State Key Laboratory of Performance Monitoring and Guarantee of Rail Transportation Infrastructure, East China Jiaotong Univ., Nanchang, Jiangxi 330013, China; Institute of Geotechnical Engineering, School of Civil Engineering and Architecture, East China Jiaotong Univ., Nanchang, Jiangxi 330013, China (corresponding author). ORCID: .