Professor Chungsik Yoo is a Vice Dean of College of Engineering, and a Professor of Civil and Architectural Engineering, Landscape Architecture at Sungkyunkwan University in Korea. He obtained his Ph.D. in Civil Engineering from the Pennsylvania State University in 1993. He worked as a Geotechnical Engineer at Mueser Rutledge Consulting Engineers in USA and subsequently became a faculty member at Sungkyunkwan University in 1994. He is currently an Executive Council Member of ITA, a Vice-President of Korean Tunnelling Association, and Vice-Chair of TC204 “Underground Construction in Soft Ground” in ISSMGE. Prof. Yoo is also working as Vice-President of International Geosynthetics Society and President of Korean Geosynthetics Society. He is serving as an Editorial Board Member for a number of international journals, such as Tunnels and Underground Space Technology, Geotextiles and Geomembranes, Geosynthetics International, Computers and Geotechnics, and Soils and Foundations. Prof. Yoo is a recipient of 2010 IGS Award from the International Geosynthetic Society (IGS) and has co-authored over 300 technical papers in geotechnical and tunnel engineering based on laboratory testing, numerical modelling, and field testing.