[HTML][HTML] Class A prediction of debris flow impact forces on dual rigid and flexible barriers: MPM modelling

S Cuomo, A Di Perna, M Martinelli, CWW Ng… - Computers and …, 2024 - Elsevier
Modelling flow-like landslides interacting with barriers poses significant challenges,
particularly to predict the impact dynamics. For the design, it is essential to assess the forces …

Two-phase MPM modelling of debris flow impact against dual rigid barriers

CWW Ng, Z Jia, S Poudyal, A Bhatta, H Liu - Géotechnique, 2023 - icevirtuallibrary.com
Multiple barriers are usually installed to effectively mitigate large-volume debris flows.
Existing multiple-barrier design recommendations ignore the effects of solid–fluid interaction …

Debris flow hazard mitigation: a simplified analytical model for the design of flexible barriers

R Brighenti, A Segalini, AM Ferrero - Computers and Geotechnics, 2013 - Elsevier
A channelized debris flow is usually represented by a mixture of solid particles of various
sizes and water flowing along a laterally confined inclined channel-shaped region to an …

Study of dynamic debris impact load on flexible debris-resisting barriers and the dynamic pressure coefficient

HWK Lam, EHY Sze, EKL Wong… - Canadian …, 2022 - cdnsciencepub.com
The use of steel flexible barriers to mitigate landslide risk on natural hillsides is becoming
common in the past decade in Hong Kong. The current design approach for this kind of …

A new physically based impact model for debris flow

X Li, J Zhao, K Soga - Géotechnique, 2021 - icevirtuallibrary.com
A new analytical model is proposed to estimate the peak impact pressure of debris flow
exerted on a rigid barrier. The new model consists of two terms, p= α 1 ρ 0 gh 0+ 0· 5 ρ 0 u …

Numerical model for the prediction of total dynamic landslide forces on flexible barriers

W Ashwood - 2014 - open.library.ubc.ca
Physical barriers are effective tools in the mitigation of landslide hazards. Numerous case
histories have been reported where flexible barriers have successfully contained debris …

Influence of debris flow solid fraction on rigid barrier impact

D Song, CWW Ng, CE Choi, GGD Zhou… - Canadian …, 2017 - cdnsciencepub.com
The dynamics of debris flows are fundamentally governed by the interaction between the
solid and fluid phases. However, current approaches used to estimate impact load treat …

Design recommendations for single and dual debris flow barriers with and without basal clearance

CWW Ng, CE Choi, H Liu, S Poudyal… - … and Reducing Landslide …, 2021 - Springer
Debris flows pose threats to sustainable development in many countries worldwide,
including China, Japan, Switzerland and USA. To mitigate these flows, rigid and flexible …

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 …

New simple method for calculating impact force on flexible barrier considering partial muddy debris flow passing through

DY Tan, JH Yin, WQ Feng, ZH Zhu, JQ Qin… - … of Geotechnical and …, 2019 - ascelibrary.org
Flexible barriers trap large particles and boulders in debris flow but allow slurry and small
particles to pass through. Field tests and real cases indicate that a certain amount of slurry …