1. Geotechnical Engineer, Dept. of Geotechnics and Natural Hazards, Norwegian Geotechnical Institute, Trondheim 7034, Norway (corresponding author).
2. Dept. of Geotechnics, Norwegian Univ. of Science and Technology, Trondheim 7491, Norway.
3. Senior Engineer, Dept. of Geotechnics and Natural Hazards, Norwegian Geotechnical Institute, Trondheim 7034, Norway; Associate Professor, Norwegian Univ. of Science and Technology, Trondheim 7491, Norway.
4. Assistant Professor, Dept. of Civil and Environmental Engineering, Norwegian Univ. of Science & Technology, Trondheim 7491, Norway,