1. Ph.D. Candidate, Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing Univ. of Technology, Beijing 100124, China.
2. Professor, Institut für Geotechnik, Univ. für Bodenkultur Wien, Vienna 1180, Austria.
3. Professor, Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing Univ. of Technology, Beijing 100124, China.
4. Professor, Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing Univ. of Technology, Beijing 100124, China (corresponding author)..