Experimental and numerical study of dynamic soil debris impact load on reinforced concrete debris-resisting barriers

HWK Lam, AL Wong - Landslides, 2021 - Springer
Abstract In Hong Kong, design practice adopts the hydrodynamic load model to estimate the
dynamic soil debris impact load on reinforced concrete debris-resisting barriers. A dynamic …

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 …

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 …

Assessment of debris flow multiple-surge load model based on the physical process of debris-barrier interaction

D Song, Y Bai, XQ Chen, GGD Zhou, CE Choi… - Landslides, 2022 - Springer
Debris-flow impact load is one of the key parameters for design of engineering
countermeasures. The multiple-surge load model is a remarkable progress in estimating the …

Review of the mechanisms of debris-flow impact against barriers

S Poudyal, C Choi, D Song, GGD Zhou… - … Conference on Debris …, 2019 - hal.science
Our limited understanding of the mechanisms pertaining to the force exerted by debris flows
on barriers makes it difficult to ascertain whether a design is inadequate, adequate, or over …

Effects of barrier stiffness on debris flow dynamic Impact—II: Numerical simulation

Y Huang, X Jin, J Ji - Water, 2022 - mdpi.com
The destructive and impactful forces of debris flow commonly causes local damage to
engineering structures. The effect of a deformable barrier on the impact dynamics is …

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 …

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 …

Advanced numerical analysis of landslide debris mobility and barrier interaction

AKC Cheung, J Yiu, HWK Lam, EHY Sze - HKIE Transactions, 2018 - Taylor & Francis
Mitigation of natural terrain hazards through the use of flexible and rigid barriers has
become a common type of geotechnical work in Hong Kong. The current design approach …

Experimental research of reinforced concrete buildings struck by debris flow in mountain areas of western China

Y Zhang, W Fangqiang, W Qing - Wuhan University Journal of Natural …, 2007 - Springer
It's very important to simulate impact load of debris flow effectively and to investigate
dynamic response of architectures under dynamic impact of debris flow, which are …