Preliminary study of debris flow impact force on a circular pillar

AL Yifru, RN Pradhan, S Nordal… - Physical Modelling in …, 2018 - taylorfrancis.com
This paper presents results from a series of preliminary tests in a flume model, where impact
forces on a circular pillar from debris flow is measured. The flume model is 0.3 m wide and 9 …

[PDF][PDF] Laboratory investigation of the impact force of debris flow on a passable structure

AL Yifru, H Vicari, S Nordal… - The XVII European …, 2019 - ecsmge-2019.com
In mountainous regions, debris-flow is one of the natural hazards imposing threats to human
lives and infrastructures. In order to estimate the magnitude of its destructive force, a number …

Dynamic impact of a debris flow front against a vertical wall

A Armanini, M Larcher, M Odorizzi - Italian Journal of Engineering …, 2011 - rosa.uniroma1.it
Recent experimental results obtained at the University of Trento show that a liquid-granular
wave can impact against a vertical obstacle producing two different mechanisms of …

Influence of particle size and structure rigidity on impact stress in simulated debris flow

N Horii, Y Toyosawa, H Hashizume - Physical Modelling in …, 2022 - taylorfrancis.com
This study examines the impact stress produced when debris flow collides with a structure
which controls debris flows. Centrifuge model tests were conducted to determine how …

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 …

Finite release of debris flows around round and square piers

Y Wang, X Liu, C Yao, Y Li, S Liu… - Journal of Hydraulic …, 2018 - ascelibrary.org
The impact pressure and force of debris flows on round and square piers were studied
experimentally in a flume. Three distinctive flow regimes, namely, Types A, B, and C, were …

Experimental analysis of the impact of dry granular debris flows against obstacles.

B Zanuttigh, A Lamberti - XXIX Convegno di idraulica e costruzioni …, 2004 - cris.unibo.it
Debris flows exert enormous impact forces on obstacles in their path. Field measurements
proves that the impact force consists of two distinct parts: the fluid dynamic pressure and the …

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 …

Experimental study on the effect of arrangement of cylindrical countermeasures on debris flow impact load

H Cho, B Kim, C Yune - Journal of the Korean Geotechnical Society, 2020 - koreascience.kr
In this study, to investigate the effect of the array of cylindrical baffles on debris flow impact
load, a series of small-scale tests were conducted according to varying row numbers of …