1. Engineer, Dept. of Civil Engineering, Aalborg Univ., 9000 Aalborg, Denmark (corresponding author).
2. Professor, Dept. of Civil Engineering, Aalborg Univ., 9000 Aalborg, Denmark.
3. Professor, Dept. of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401; and Australian Research Council Centre of Excellence for Geotechnical Science and Engineering, Univ. of Newcastle, Callaghan, NSW 2308, Australia.
4. Engineer, Dept. of Civil Engineering, Aalborg Univ., 9000 Aalborg, Denmark.
5. Associate Professor, Dept. of Civil Engineering, Aalborg Univ., 9000 Aalborg, Denmark.