Design of sediment traps with open check dams. I: Hydraulic and deposition processes

G Piton, A Recking - Journal of Hydraulic Engineering, 2016 - ascelibrary.org
Sediment traps with open check dams are widely used structures in flood hazard mitigation.
This paper reviews the literature dedicated to their design. First, the general context in which …

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 …

Numerical investigation of the mechanism of granular flow impact on rigid control structures

E Yang, HH Bui, GD Nguyen, CE Choi, CWW Ng… - Acta Geotechnica, 2021 - Springer
Baffles and check-dam systems are often used as granular flow (rock avalanches, debris
flows, etc.) control structures in regions prone to dangerous geological hazards leading to …

Impact mechanisms of granular and viscous flows on rigid and flexible barriers

CWW Ng, D Song, CE Choi, LHD Liu… - Canadian …, 2017 - cdnsciencepub.com
Structural countermeasures such as rigid and flexible barriers are commonly installed in
mountainous regions to intercept mass-wasting processes. Without sufficient and reliable …

Numerical study of granular debris flow run-up against slit dams by discrete element method

GGD Zhou, J Du, D Song, CE Choi, HS Hu, C Jiang - Landslides, 2020 - Springer
Run-up of granular debris flows against slit dams on slopes is a complex process that
involves deceleration, deposition, and discharge. It is imperative to understand the run-up …

Investigation of influence of baffles on landslide debris mobility by 3D material point method

X Li, Q Yan, S Zhao, Y Luo, Y Wu, D Wang - Landslides, 2020 - Springer
In mountainous terrain, landslide debris is a common occurrence around the world that can
potentially result in catastrophic consequences to downstream residents and facilities …

Flume investigation of landslide granular debris and water runup mechanisms

CE Choi, SCH Au-Yeung, CWW Ng… - Géotechnique …, 2015 - icevirtuallibrary.com
The heights of rigid debris flow barriers are designed to provide adequate retention and
prevent debris from over-spilling. Designers need to predict potential runup height against a …

Effects of particle size of mono-disperse granular flows impacting a rigid barrier

Y Cui, CE Choi, LHD Liu, CWW Ng - Natural Hazards, 2018 - Springer
Understanding the interaction between complex geophysical flows and barriers remains a
critical challenge for protecting infrastructure in mountainous regions. The scientific …

Dry granular flow interaction with dual-barrier systems

CWW Ng, CE Choi, RCH Koo, SR Goodwin… - …, 2018 - icevirtuallibrary.com
Multiple barriers are commonly installed along predicted geophysical flow paths to intercept
large flow volumes. The main criterion for multiple-barrier design is volume retained. The …

Landslide mobility analysis for design of multiple debris-resisting barriers

JSH Kwan, RCH Koo, CWW Ng - Canadian Geotechnical …, 2015 - cdnsciencepub.com
Multiple debris-resisting barriers have been commonly used worldwide to mitigate debris
flows in drainage lines. However, a well-developed methodology to assess the mobility of …