Prof. Liao got his B.S. degree in Civil Engineering from National Taiwan University (1979), M.Sc. degree from Imperial College of Science and Technology (1982), and Ph. D. degree from Northwestern University (1986). During his teaching career at the National Taiwan University of Science and Technology (NTUST), Prof. Liao has served the university extensively including the chairman of Department of Civil & Construction Engineering, the Dean of Research & Development, and the Vice President of the University. Currently, he is a distinguished professor of NTUST.
Prof. Liao was the coordinator of the international investigation committee on the 2010 national expressway landslide in Taiwan. At that time, Prof. Liao served as the president of Taiwan Geotechnical Society. Based on the findings from the investigation, the slope maintenance systems of the national expressway, highway, and railway in Taiwan had been thoroughly overhauled. In addition, Prof. Liao had initiated his research on ground improvement since his Ph. D. research under the supervision of Prof. Ray Krizek at Northwestern University. Since then, he has been working continuously on ground improvement for three decades. He was in charge of drafting the design and construction specifications of ground improvement for the Taiwan Geotechnical Society. Prof. Liao had been active in the soil grouting works for the construction of Taipei MRT.