Challenges and perspectives in designing engineering structures against debris-flow disaster

Y Huang, B Zhang - European Journal of Environmental and Civil …, 2022 - Taylor & Francis
Debris-flow disaster has caused large casualties and tremendous economic loss. Check
dams, flexible barriers, silt dams and baffle arrays are most used disaster prevention …

Particle shape effects on submarine landslides via CFD-DEM

X Bao, H Wu, H Xiong, X Chen - Ocean Engineering, 2023 - Elsevier
Submarine landslides constitute a crucial area of interest in the fields of geotechnical and
oceanic research. These events are often simplified as a granular collapse process that …

How flexible, slit and rigid barriers mitigate two‐phase geophysical mass flows: a numerical appraisal

Y Kong, M Guan, X Li, J Zhao… - Journal of Geophysical …, 2022 - Wiley Online Library
Flexible, slit, and rigid barriers are common countermeasures to mitigate natural
geophysical mass flows, but presently, quantitative comparisons of their performance are …

Assessing debris flow impact on flexible ring net barrier: A coupled CFD-DEM study

X Li, J Zhao, JSH Kwan - Computers and Geotechnics, 2020 - Elsevier
Flexible ring net barriers have become increasingly popular in practical mitigation of debris
flow worldwide. Systematic assessments of their response and performance subjected to the …

Bi‐linear laws govern the impacts of debris flows, debris avalanches, and rock avalanches on flexible barrier

Y Kong, M Guan, X Li, J Zhao… - Journal of Geophysical …, 2022 - Wiley Online Library
Geophysical mass flows impacting flexible barriers can create complex flow patterns and
multiway solid‐fluid‐structure interactions, wherein estimates of impact loads rely …

Quantifying the transition of impact mechanisms of geophysical flows against flexible barrier

Y Kong, X Li, J Zhao - Engineering Geology, 2021 - Elsevier
Flexible barriers have been increasingly used worldwide for mitigating natural hazards
involving various geophysical flows. The analysis and design of flexible barriers need to …

Impact behavior of superspeed granular flow: Insights from centrifuge modeling and DEM simulation

B Zhang, Y Huang - Engineering Geology, 2022 - Elsevier
The impact behavior of superspeed granular flows is not sufficiently understood, although it
is the basis for establishing an impact model, which is important in barrier design. Centrifuge …

Hydro-mechanical simulations aid demand-oriented design of slit dams for controlling debris flows, debris avalanches and rock avalanches

Y Kong, M Guan - Engineering Geology, 2023 - Elsevier
Slit dams are widely used for managing multiphase geophysical flows with diverse
objectives. However, quantitatively linking dam configurations and flow properties to design …

Mechanics of the penetration and filtration of cement-based grout in porous media: New insights from CFD–DEM simulations

Y Zhu, H Sun, S Xu, L Hu, H Cao, Y Cai, J Liu - … and Underground Space …, 2023 - Elsevier
Cement permeation grouting is a standard ground improvement technique crucial for
improving soil's mechanical properties. This study applied the computational fluid dynamics …

Numerical and analytical analyses of the impact of monodisperse and bidisperse granular flows on a baffle structure

B Zhang, Y Huang - Landslides, 2022 - Springer
Baffle structure, a promising countermeasure in reducing the destruction power of rapid
granular flows, needs more investigation especially with focus on the physically based …