Professor Reşat Ulusay obtained his BSc and MSc degrees from Hacettepe University in 1975 and PhD degree from Middle East Technical University (METU), Turkey, in 1991 in engineering geology.
His main research activities are connected to engineering geology, rock mechanics and soil mechanics; particularly slope stability, rock mass characterization, laboratory and in-situ testing, earthquake-induced ground deformations, and swelling.
Between 1975 and 1996, he worked at the Mineral Research and Exploration Institute (MTA) of Turkey and was trained on mining geotechnology by Golder Associates and assigned to establish the Rock and Soil Mechanics Division and Laboratories under the auspices of the United Nations. During this period, he was involved in a number of geotechnical projects as engineer/manager, service chief and department coordinator. He became Associate Professor in 1994. Since December 1995 he has been working at the Applied Geology Division of the Geological Engineering Department at Hacettepe University. He became full Professor in 2000. He has also been a part-time instructor in METU since 1992.
Reşat Ulusay supervised a number of MSc and PhD theses and authored many research papers. He is also an editorial board member of several international journals.
He is the President of ISRM Commission on Testing Methods, member of ISRM Design Methodology Commission, President of the Turkish Society of Engineering Geology and member of Turkish Earthquake Advisory Board. He also participated in some international collaborative research projects and is the co-editor and editor of the ISRM Blue Book and Orange Book, respectively, which compile the ISRM Suggested Methods since 1974.