1. Professor, School of Qilu Transportation, Shandong Univ., Jinan, Shandong 250061, China; Geotechnical and Structural Engineering Research Center, Shandong Univ., Jinan, Shandong 250061, China; SinoProbe Center-China Deep Exploration Center, Chinese Academy of Geological Sciences, Beijing 100037, China. ORCID: .
2. Ph.D. Student, School of Qilu Transportation, Shandong Univ., Jinan, Shandong 250061, China; Geotechnical and Structural Engineering Research Center, Shandong Univ., Jinan, Shandong 250061, China.
3. Geotechnical and Structural Engineering Research Center, Shandong Univ., Jinan, Shandong 250061, China (corresponding author). ORCID: .
4. Ph.D. Student, Geotechnical and Structural Engineering Research Center, Shandong Univ., Jinan, Shandong 250061, China.