1. Doctor of Engineering, Graduate in the Geotechnical Engineering Program, School of Civil Engineering, Asian Institute of Technology, Klong Luang, Pathumthani 12120, Thailand. E-mail: glen.lorenzo@ait.ac.th
2. Professor, Geotechnical Engineering Program, School of Civil Engineering, Asian Institute of Technology, Klong Luang, Pathumthani 12120, Thailand (corresponding author). E-mail: bergado@ait.ac.th