Perspectives for flood risk assessment and management for mega-city metro system

HM Lyu, SL Shen, A Zhou, J Yang - Tunnelling and Underground Space …, 2019 - Elsevier
This paper presents an overview on the risk assessment approaches for inundation of metro
systems based on regional flood risk assessment methods. Detailed summarization is …

Contributions to responses of existing tunnel subjected to nearby excavation: A review

F Meng, R Chen, Y Xu, K Wu, H Wu, Y Liu - Tunnelling and Underground …, 2022 - Elsevier
Excavation nearby an existing tunnel is frequently encountered in underground construction,
especially in congested urban areas. Essentially, the responses of the ground and existing …

Risk assessment using a new consulting process in fuzzy AHP

HM Lyu, WJ Sun, SL Shen, AN Zhou - Journal of Construction …, 2020 - ascelibrary.org
A fuzzy analytical hierarchy process (FAHP) is an effective risk assessment method in which
a questionnaire is used to collect experts' responses. However, determining fuzzy numbers …

Flood risk assessment in metro systems of mega-cities using a GIS-based modeling approach

HM Lyu, WJ Sun, SL Shen, A Arulrajah - Science of the Total Environment, 2018 - Elsevier
Metro system is a vital component of mass transportation infrastructure, providing crucial
social and economic service in urban area. Flood events may cause functional disruptions to …

Three-dimensional numerical modelling on localised leakage in segmental lining of shield tunnels

HN Wu, SL Shen, RP Chen, A Zhou - Computers and Geotechnics, 2020 - Elsevier
A new numerical approach for modelling the localised leakage of shield tunnel lining is
proposed, in which the localised leakage is simulated using a one-dimensional leakage …

Effect of ground surface surcharge on deformational performance of tunnel in spatially variable soil

JZ Zhang, HW Huang, DM Zhang, ML Zhou… - Computers and …, 2021 - Elsevier
This study investigates the coupled effect of the soil spatial variations and the disturbance of
ground surface on the existing tunnel using random finite difference method (RFDM). The …

Risk assessment of mega-city infrastructures related to land subsidence using improved trapezoidal FAHP

HM Lyu, SL Shen, A Zhou, J Yang - Science of the Total Environment, 2020 - Elsevier
This study presents an improved trapezoidal fuzzy analytic hierarchy process (FAHP) to
assess the risk of mega-city infrastructures related to land subsidence. The trapezoidal fuzzy …

Optimization techniques for identifying soil parameters in geotechnical engineering: Comparative study and enhancement

ZY Yin, YF **, JS Shen… - International Journal for …, 2018 - Wiley Online Library
A comparative study of optimization techniques for identifying soil parameters in
geotechnical engineering was first presented. The identification methodology with its 3 main …

Theoretical analysis on the deformation of existing tunnel caused by under-crossing of large-diameter slurry shield considering construction factors

Z Ding, MB Zhang, X Zhang, XJ Wei - Tunnelling and Underground Space …, 2023 - Elsevier
With the expansion of underground space networks, new tunnels especially large-diameter
shields under-crossing existing tunnels have been commonly practiced. To obtain a better …

Longitudinal structural modelling of shield tunnels considering shearing dislocation between segmental rings

HN Wu, SL Shen, SM Liao, ZY Yin - Tunnelling and Underground Space …, 2015 - Elsevier
Shield tunnels in soft deposits are often subjected to differential settlement and longitudinal
structural deformation during long-term operation. Since the shear stiffness in circumferential …