1. Professor, Dept. of Civil and Architectural Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden (corresponding author).
2. Research and Consulting Engineer, Swedish Geotechnical Institute (SGI), SE-581 93 Linköping, Sweden.
3. Senior Geotechnical Engineer, Skanska Sverige AB, Warfvinges väg 25, SE-112 74 Stockholm, Sweden.
4. Geotechnical Specialist, Skanska Sverige AB, Warfvinges väg 25, SE-112 74 Stockholm, Sweden.