Reşat Ulusay, obtained BSc and MSc degrees on engineering geology from the Geological Engineering Department at Hacettepe University (HU) in 1975 and PhD degree from the Middle East Technical University (METU) in 1991, Ankara, Türkiye, respectively. His main research activities are concentrated on engineering geology, rock mechanics and soil mechanics; particularly on slope stability, rock mass characterization and classification, laboratory and in-situ geomechanical testing, geo-engineering at historical sites, earthquake-induced ground deformations, attenuation relationships and swelling. Between 1975 and 1996, he worked at the Mineral Research and Exploration Institute (MTA) of Türkiye and was trained on mining geotechnology by Golder and Hoek Associates in UK and assigned to establish the Rock and Soil Mechanics Division and Laboratories under the auspices of the United Nations.

He became Associate Professor in 1994. Between December 1995 and 1 September 2019 he worked at the Applied Geology Division of the Geological Engineering Department at HU. He became full Professor in 2000. He has also been a part-time instructor in METU between 1992 and 2015. He supervised 34 MSc and PhD theses and retired on 1 September 2019.

He is the author and/or co-author of about 300 papers, four technical books (Turkish) on rock mechanics and geotechnics, two dictionaries on geo-engineering and rock mechanics, and the Co-editor and Editor of the ISRM Blue Book and ISRM Orange Book, respectively. He served as Editor-in-Chief of "Bulletin of Engineering Geology & the Environment" and the Ex-Officio Executive Committee Member of the International Association of Engineering Geology (IAEG) between 2019 and 2021. He also served as the President of the “Turkish Society of Engineering Geology” and member of the “Turkish Earthquake Advisory Board”.

Since 2006 he is the Chairman of the “ISRM Commission on Testing Methods (CTM)”. He presented “8th ISRM Online Lecture”. In 2015, he was recognized by ISRM as “Lifetime ISRM Fellow”, honoring his accomplishments in rock mechanics and engineering and his contributions to ISRM and “ISRM Outstanding Commission Award 2015” was conferred to the “ISRM CMT”. He served as the “ISRM President” between 2019 and 2023. In 2016, the “Hans Cloos Medal” was conferred to Prof. Ulusay by IAEG for his excellent contributions to engineering geology. He is a recipient of “2024 Honorary Membership of IAEG”. He is a Visiting Professor at “Department of Resources and Civil Engineering of Northeastern University”, Shenyang, China and “University of Ss. Cyril and Methodius, Faculty of Civil Engineering”, Skopje, N. Macedonia, since 2018 and 2020, respectively.

He is a recipients of 2024 Honorary Membership of IAEG. He is Visiting professor at University Ss. Cyril and Methodius, Faculty of Civil Engineering, Skopje.

Title of the lecture: The importance of rock engineering for deep open pit slopes: Some considerations