Dr. Hai-Min LYU

E-mail : haimin.lyu@polyu.edu.hk


Academic qualifications

  • Ph.D. in Civil Engineering, Shanghai Jiao Tong University, China, 2016 – 2019
  • M.Sc. in Geotechnical Engineering, Lanzhou University, China, 2012 – 2015
  • B.Sc. in Geological Engineering, Lanzhou University, China, 2008 – 2012

Professional experience (University)

  • Postdoc fellow, The Hong Kong Polytechnic University, Hong Kong, China, 04/2022 – present
  • Research Assistant, The Hong Kong Polytechnic University, Hong Kong, China, 12/2021 - 03/2022
  • Postdoc fellow, University of Macau, Macau, China, 10/2019 - 10/2021

Research interests

  • Risk assessment in construction engineering
  • Sustainable development of urban infrastructures
  • Urban disaster prevention planning

Topic 1:Risk identification and assessment of metro system

  • Contribution: Proposed a new expert system to determine fuzzy numbers in fuzzy AHP methods, including interval fuzzy AHP, triangular fuzzy AHP and trapezoidal fuzzy AHP.
  • Significance: Improving the accuracy of assessed results from AHP-based method, simplifying the process to determine fuzzy numbers in fuzzy AHP.



  • Lyu HM, Sun WJ, Shen SL, Zhou AN, 2020. Risk assessment using a new consulting process in fuzzy AHP. Journal of Construction Engineering and Management, ASCE, 146(3), 04019112. (ESI)
  • Lyu HM, Shen SL, Zhou AN, Zhou WH, 2019. Flood risk assessment of metro system in subsiding environment using the interval FAHP-FCA approach. Sustainable Cities and Society. 50, 101682.
  • Lyu HM, Shen SL, Zhou AN, Yang J, 2019. Perspectives for flood risk assessment and management for mega-city metro systems. Tunneling and Underground Space Technology. 84(2019), 31-44. (ESI)


Topic 2:GIS-based approach for risk assessment of metro system

  • Contribution: Adopted interval fuzzy number to Set Pair Analysis (SPA) methods, proposed the interval-based SPA
  • Significance: Modifying and simplifying the existing SPA methods, overcoming the limitations of existing SPA methods



  • Lyu HM, Shen SL, Zhou A, Yin, ZY, 2022. Assessment of safety status of shield tunnelling using operational parameters with enhanced SPA, Tunnelling and Underground Space Technology, 123, 104428.
  • Lyu HM, Shen SL, Zhou A, 2021, The development of IFN-SPA: a new risk assessment method of urban water quality and its application in Shanghai. Journal of Cleaner Production, 282, 124542.
  • Lyu HM, Sun WJ, Shen SL, Arulrajah A, 2018. Flood risk assessment in metro systems of mega-cities using a GIS-based modeling approach, Science of the Total Environment, 626: 1012-1025. (ESI)


Topic 3:Prediction and simulation for inundation risk of metro station

  • Contribution: Proposed an algorithm to simulate the inundation depth when considering different rainfall intensity and subsiding environment
  • Significance: Predicting the inundation risk of metro station under different rainfall intensity and subsiding environment.


  • Lyu HM, Shen SL, Zhou AN, Yang J, 2020. Risk assessment of mega-city infrastructures related to land subsidence using improved trapezoidal FAHP. Science of the Total Environment, 717(15): 135310. (ESI)
  • Lyu HM, Zhou WH, Shen SL, Zhou AN, 2020. Inundation risk assessment of metro system using AHP and TFN-AHP in Shenzhen. Sustainable Cities and Society. 56, 102103. (ESI)
  • Lyu HM, Shen SL, Yang J, Yin ZY, 2019. Inundation analysis of metro systems with the storm water management model incorporated into a geographical information system: a case study in Shanghai. Hydrology and Earth System Sciences, 23(10), 4293–4307.