1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Tongji University Shanghai China
2. Department of Geotechnical Engineering, College of Civil Engineering Tongji University Shanghai China
3. CNPC Engineering Technology R&D Company Limited Beijing China
4. Department of Energy and Mineral Engineering, EMS Energy Institute and G3 Center The Pennsylvania State University University Park PA USA
5. Department of Geosciences The Pennsylvania State University University Park PA USA
6. Department of Civil and Architectural Engineering and Mechanics University of Arizona Tucson AZ USA