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
debris flows and a rigid barrier through discrete element modeling (DEM) of flume tests. The
debris … loosely packed spherical particles and the rigid barrier was represented by a layer of …

Influence of debris flow solid fraction on rigid barrier impact

D Song, CWW Ng, CE Choi, GGD Zhou… - Canadian …, 2017 - cdnsciencepub.com
… used to estimate impact load treat debris flow as an … -surge debris flow impact on a rigid
barrier. The effect of solid–fluid interaction was studied by varying the solid fraction of the flows. A …

Debris flow impact estimation on a rigid barrier

F Vagnon, A Segalini - Natural Hazards and Earth System …, 2016 - nhess.copernicus.org
debris flow impact against rigid and undrained barrier in order to propose a new formulation
for the estimation of acting force after the flow impact … concentrates on the flow impact, by per…

Design of active debris flow mitigation measures: a comprehensive analysis of existing impact models

F Vagnon - Landslides, 2020 - Springer
… The aim of this paper is to analyse debris flow impact models proposed in scientific literature
and evaluate the discrepancies between measured and numerically predicted results using …

Review of the mechanisms of debris-flow impact against barriers

S Poudyal, C Choi, D Song, GGD Zhou… - … on Debris-Flow …, 2019 - hal.science
… state of research on the impact mechanisms of debris flows is presented in this … a debris
flow to assess the resulting dynamic response and impact mechanisms induced on a rigid barrier

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
… In this study, boulder flows and debris flows with and without boulders were modeled to
investigate the impact mechanisms of boulder-enriched debris flow on a rigid barrier using a …

General equations for landslide-debris impact and their application to debris-flow flexible barrier

D Song, GGD Zhou, XQ Chen, J Li, A Wang, P Peng… - Engineering …, 2021 - Elsevier
debris flow and dry granular flow impact against barriers. Especially, the movement of impacted
obstacle (deflection of flexible barrier) … The model prediction, ie, runup height and impact

Influence of deflector on the impact dynamics of debris flow against rigid barrier

CWW Ng, Z Li, YD Wang, H Liu, S Poudyal… - Engineering …, 2023 - Elsevier
… SPH modelling is used in this study to model the dynamics of debris flow impacting a barrier
with a deflector. In SPH, the computational domain is discretized into meshless particles that …

Debris flow risk mitigation by the means of rigid and flexible barriers–experimental tests and impact analysis

L Canelli, AM Ferrero, M Migliazza… - Natural Hazards and …, 2012 - nhess.copernicus.org
… of the impact of a debris flow on a protection structure and establishing which analytical
model could be applied to estimate the thrust induced by a debris flow on a generic structure. …

Analytical and numerical models of debris flow impact

S Cuomo, A Di Perna, M Martinelli - Engineering Geology, 2022 - Elsevier
… a novel analytical model for the impact of debris flows against barriers. … the impact of flow-like
landslides against artificial barriers, focusing not only on the evaluation of the peak impact