Effects of dynamic strain rate on the energy dissipation and fragment characteristics of cross-fissured rocks

P Feng, Y Xu, F Dai - International Journal of Rock Mechanics and Mining …, 2021 - Elsevier
Internal initiation and propagation of micro cracks in rock materials might result in
macroscopic fragmentation and energy dissipation under dynamic strain rate …

Quantifying the impact of dry debris flow against a rigid barrier by DEM analyses

W Shen, T Zhao, J Zhao, F Dai, GGD Zhou - Engineering Geology, 2018 - Elsevier
This study investigates the interaction between dry debris flows and a rigid barrier through
discrete element modeling (DEM) of flume tests. The debris materials were modeled as an …

Numerical investigation of landslide kinetics for the recent Mabian landslide (Sichuan, China)

J Wei, Z Zhao, C Xu, Q Wen - Landslides, 2019 - Springer
Using the particle flow code (PFC), this work analyses the kinetic features of a landslide
which occurred on May 5, 2018 in Mabian, Leshan City, Sichuan Province, China. The …

Mechanical behaviors of conjugate-flawed rocks subjected to coupled static–dynamic compression

P Feng, J Zhao, F Dai, M Wei, B Liu - Acta Geotechnica, 2022 - Springer
Conjugate flaws widely exist in rock masses and play a significant role in their deformation
and strength properties. Understanding the mechanical behaviors of rock masses containing …

Dynamics of granular debris flows against slit dams based on the CFD–DEM method: effect of grain size distribution and ambient environments

W Mao, Y Wang, P Yang, Y Huang, H Zheng - Acta Geotechnica, 2023 - Springer
Earth surface flows in nature, like debris flows and rock avalanches, have threatened
people's safety and infrastructure during past decades. Though grain size distribution (GSD) …

The influence of water level fluctuation on the stability of landslide in the Three Gorges Reservoir

Y Zhang, S Zhu, J Tan, L Li, X Yin - Arabian Journal of Geosciences, 2020 - Springer
In order to study the influence of water level fluctuation on the stability of landslide in the
Three Gorges Reservoir (TGR), Xigouwan landslide was selected to be a research object to …

“Soil arching” for piled embankments: insights from stress redistribution behaviour of DEM modelling

HJ Lai, JJ Zheng, MJ Cui, J Chu - Acta Geotechnica, 2020 - Springer
For piled embankments, it is widely recognised that the majority of embankment load can be
transferred to the piles through the “soil arching” mobilised in the embankment. To date, no …

[HTML][HTML] DEM analyses of rock block shape effect on the response of rockfall impact against a soil buffering layer

W Shen, T Zhao, F Dai, M Jiang, GGD Zhou - Engineering geology, 2019 - Elsevier
This study investigates the mechanism of rockfall impact against a granular soil buffering
layer above a concrete/rock shed via numerical simulations by discrete element method …

Effect of particle shape on the response of geogrid-reinforced systems: Insights from 3D discrete element analysis

G Gao, MA Meguid - Geotextiles and Geomembranes, 2018 - Elsevier
Understanding soil-geogrid interaction is essential for the analysis and design of reinforced
soil systems. Modeling this interaction requires proper consideration for the geogrid …

Dynamic disintegration processes accompanying transport of an earthquake-induced landslide

G Gao, MA Meguid, LE Chouinard, W Zhan - Landslides, 2021 - Springer
Aiming to understand the dynamic disintegration and transport behavior of an earthquake-
induced landslide, a dynamic discrete element method has been employed to analyze the …