Load-attenuation mechanisms of flexible barrier subjected to bouldery debris flow impact

D Song, CE Choi, CWW Ng, GGD Zhou, JSH Kwan… - Landslides, 2019 - Springer
The impulse load of boulders at the front of debris flows is critical to the design of structural
defense measures, which are commonly constructed on hillsides to mitigate landslide risk …

Coupled numerical simulation of a flexible barrier impacted by debris flow with boulders in front

L Zhao, JW He, ZX Yu, YP Liu, ZH Zhou, SL Chan - Landslides, 2020 - Springer
Flexible barriers have been widely adopted to mitigate the debris flow disasters. However,
the research on the coupled interaction analysis between flexible barriers and debris flows …

Impulse load characteristics of bouldery debris flow impact

D Song, CE Choi, GGD Zhou, JSH Kwan… - Géotechnique …, 2018 - icevirtuallibrary.com
Boulders entrained in debris flows are the main cause of damage to debris-resisting
structures. Poly-dispersity leads to grain-size segregation, which causes boulders to migrate …

Impact dynamics of boulder-enriched debris flow on a rigid barrier

CWW Ng, H Liu, CE Choi, JSH Kwan… - Journal of Geotechnical …, 2021 - ascelibrary.org
Boulders entrained in debris flow induce high impact forces on a rigid barrier. In current
design practice, the concentrated load from boulders is estimated using the Hertz equation …

Analytical solution for estimating sliding displacement of rigid barriers subjected to boulder impact

ACY Yong, C Lam, NTK Lam, JS Perera… - Journal of Engineering …, 2019 - ascelibrary.org
Rigid barriers are commonly used as defense measures in hilly areas to contain falling
boulders and landslide debris, and the sliding displacement of these barriers is a key design …

Shallow landslide full-scale experiments in combination with testing of a flexible barrier

L Bugnion, C Wendeler - WIT Transactions on Engineering Sciences, 2010 - witpress.com
Open shallow landslides occur regularly in a wide range of natural terrains. Generally, they
are difficult to predict and result in damages to properties and disruption of transportation …

Large-scale successive boulder impacts on a rigid barrier shielded by gabions

CWW Ng, CE Choi, AY Su, JSH Kwan… - Canadian Geotechnical …, 2016 - cdnsciencepub.com
Debris flows occur in multiple surges. Boulders entrained within the flow have been reported
to incapacitate structures within its flow path. Single-layer cushions, such as gabions, are …

Experimental and numerical study on the load and deformation mechanism of a flexible net barrier under debris flow impact

R Jiang, W Fei, H Zhou, M Huo, J Zhou, J Wang… - Bulletin of Engineering …, 2020 - Springer
High-strength flexible net barriers have achieved a certain effect in mountainous debris flow
prevention, but research on the mechanism of structural stress and deformation is still …

Multi-scale flume investigation of the influence of cylindrical baffles on the mobility of landslide debris

BJ Kim, CE Choi, CY Yune - Engineering Geology, 2023 - Elsevier
Debris flows travel downslope at high speed and often cause damage to the infrastructure of
societies around the world. With increasing extreme rainfall events and urbanization in …

Velocity attenuation of debris flows and a new momentum-based load model for rigid barriers

RCH Koo, JSH Kwan, CWW Ng, C Lam, CE Choi… - Landslides, 2017 - Springer
Effective design of mitigation measures against debris flow hazards remains a challenging
geotechnical problem. At present, a pseudo-static approach is commonly used for the …