Dr. C.E. Choi

Assistant Professor (Geotechnical Engineering)
Ir. Dr. Clarence E. Choi

BSc (with distinction), University of Calgary, Canada
PhD, The Hong Kong University of Science and Technology, China




Office: HW 6-29
Phone: +852 2859 1980
Fax: +852 2559 5337
E-mail: cechoi@hku.hk
Homepage: https://www.cechoi.org/


Teaching Activities
  • CIVL3133 Ground Improvement
  • CIVL3114 Slope Engineering
  • CIVL4101 Capstone Design Project
  • CIVL4102 Final Year Project
  • CIVL6077 Ground investigation and soil testing
  • CIVL6079 Slope Engineering (advanced)


Research Interests
  • Landslides
  • Ground improvement


  • 2023 Young Engineer of the Year Award, HKIE
  • 2023 The 3rd Hutchinson Lecture, FedIGS
  • 2022 Oldrich Hungr Award, ICL, UNESCO
  • 2022 Geotechnical Paper Award, HKIE
  • 2021 Bright Spark Award, ISSMGE
  • 2019 Best Paper Award, Landslides, ICL, UNESCO
  • 2017 Telford Premium Prize from ICE, UK
  • 2017 R.M Quigley Award, CGS


Representative Research Projects
  • Mitigating post-fire debris flows using V-shaped diversions: large-scale physical modelling (PI, RGC-GRF)
  • Carbon-friendly pneumatic flow mixing to rapidly recycle waste mud for land reclamation in Hong Kong (PI, EPD-GTF)
  • Revealing the role of trees in the mobility of debris flows: large-scale physical modelling (PI, RGC-GRF)
  • Towards sustainable and negative carbon footprint deep cement mixing for reclamation in Hong Kong (PI, EPD-ECF)
  • Impact dynamics of debris flow on a series of barriers with basal clearances designed to self-clean: physical modelling (PI, RGC-ECS)
  • Mechanisms of interaction between debris flow and baffles (PI, RGC-GRF)
  • Impact of geophysical flows on rigid barriers with and without cushioning materials, (PI, RGC-GRF)
  • 3D cracking behaviour of rocks under true tri-axial stress conditions: mechanical modelling and investigation (PI, RGC-GRF)
  • Impact mechanisms of debris flows on erodible bed against multiple flexible barriers: large-scale physical modelling (PI, RGC-GRF)
  • Interaction mechanisms between debris flows and multiple barriers (PI, NSFC-YSF)


10 Selected Representative Publications
  • Choi C.E. and Nikooei M.* (2023) Revealing the physics of sediment ploughing by geophysical mass flows: Depth-averaged approach. Computers and Geotechnics, 154: 105119.
  • Choi C.E. and Song P* (2023) New unsaturated erosion model for landslide: Effects of flow particle size and debunking the importance of frictional stress. Engineering Geology, 315: 107024.
  • Liang Z., Choi C.E.*, Jiang Y., Zhao Y. and Choo J.* (2023) Revealing the role of forests in the mobility of geophysical flows. Computers and Geotechnics, 153: 105194.
  • Du J., Choi C.E.*, Yu J. and Thakur, V. (2022) Mechanisms of submarine debris flow growth. Journal of Geophysical Research: Earth Surface, 127(3), e2021JF006470.
  • Choi C.E., Zhang J.* and Liang, Z. (2022) Towards realistic predictions of microplastic fibre transport: secondary motions. Water Research, 218: 118476.
  • Ng C.W.W., Majeed U. and Choi C.E.* (2022) Effects of solid fraction of saturated granular flows on overflow and landing mechanisms of rigid barriers. Géotechnique, (published online: https://doi.org/10.1680/jgeot.21.00170).
  • Zhang J. and Choi C.E.* (2022) New shape-dependent drag model for microplastic fibers. Environmental Science & Technology, 56(2): 962-973.
  • Song P. and Choi C.E.* (2021) Revealing the importance of capillary and collisional stresses on soil bed entrainment by debris flows. Journal of Geophysical Research: Earth Surface, 26(5): e2020JF005930.
  • Choi, C.E. and Goodwin, G.R.* (2021). Effects of interactions between transient granular flows and macroscopically rough beds and their implications for bulk flow dynamics. Canadian Geotechnical Journal, 58(12): 1943-1960.
  • Ng, C.W.W., Choi, C.E.*, Koo, R.C.H. and Kwan, J.S.H. (2018) Dry granular flow interaction with dual-barrier systems. Géotechnique, 68(5): 386-399.


For more information of Dr. C.E. Choi , please visit https://www.cechoi.org/.