Zhai Qian graduated from the School of Civil Engineering of Southeast University in 2005. He received a master's degree in engineering and a doctorate in philosophy from Nanyang Technological University, Singapore, in 2010 and 2016, respectively. He is currently an Assistant Professor in the School of Civil Engineering, at Southeast University. He has been engaged in basic research on unsaturated soil mechanics for a long time and has made outstanding achievements in the seepage and strength theory of unsaturated soils. He is also an editorial board member of the International Journal of Geotechnical Engineering and a reviewer for international journals such as Engineering Geology, Géotechnique, Canadian Geotechnical Journal, and Acta Geotechnica. His research interests include basic research on engineering properties of unsaturated soil, the evaluation and treatment of shallow slope instability, research on the performance of foundation-bearing machines under special geological conditions, and the development of micro-software related to smart geotechnical engineering.