Dr. Guoqing Cai is a Professor specializing in Geomechanics and Geotechnical Engineeing in the School of Civil Engineering at Beijing Jiaotong University (BJTU), China. Professor Guoqing Cai serves as the Dean of School of Civil Engineering at BJTU from 2023.

Dr. Guoqing Cai has research interests and expertise in characterization of unsaturated soils subjected to environmental loads, i.e., laboratory testing and constitutive modelling on unsaturated soils, microstructure investigation, thermal effects at high or low temperatures, advanced constitutive modelling for coupled THM behavior, dynamic characteristics of subgrade fill, numerical modeling of particle migration in granular soils using innovative techniques.

Dr. Guoqing Cai has served as an investigator on over 40 research projects including the National Excellent Youth Science Fund of China, Key Project of the National Natural Science Foundation of China and the National Key Research and Development Program etc. Dr. Guoqing Cai has graduated 8 PhD and 24 MS students, and authored/co-authored over 150 peer reviewed publications on unsaturated soils.

Dr. Guoqing Cai is the Editorial Board Member of Canadian Geotechnical Journal and Associate Director of Editorial Board of Urban Rail Transit Springer journal. He is also the Editorial Board Member of 6 Chinese journals on geotechnical engineering. Dr. Guoqing Cai is one of the 29 executive directors of the Chinese Institution of Soil Mechanics and Geotechnical Engineering and serve as the secretary-general of Unsaturated Soils Committee.

Dr. Guoqing Cai was selected and honored with National Excellent Youth Science Fund Scholar by the National Natural Science Foundation of China (NSFC) in 2017, Mao Yi-sheng Beijing Youth Science and Technology Award in 2020 and Zhan Tian-you Railway Science and Technology Award in 2022.