Impacts of bridge piers on scour at downstream river training structures: submerged weir as an example

L Wang, BW Melville, AY Shamseldin… - Water Resources …, 2020 - Wiley Online Library
River training structures are conventionally used to improve river stability and ecological
conditions and to protect the upstream instream infrastructures from scour and erosion. A …

Analysis of fish migration in correspondence with wood and rock-made instream structures

SM Kurdistani, S Pagliara, M Palermo - Geomorphology, 2023 - Elsevier
Anthropic exploitation of soil, forests, and water bodies contributes to the modification of river
flow regimes and sediment transport dynamics, thus affecting fish habitats and water quality …

Apron and macro roughness as scour countermeasures downstream of block ramps

SM Kurdistani, ME Varaki… - ISH Journal of …, 2024 - Taylor & Francis
ABSTRACT A block ramp is a grade-control structure commonly used to stabilize the river
bed with a high efficiency of energy dissipation. This study investigates the effects of using …

Scour downstream of stepped-baffle weirs in wide rivers

SM Kurdistani, ME Varaki, ZK Larsari - Sādhanā, 2022 - Springer
In this study, the effect of the structure geometry, the bed material, and the river hydraulic
conditions on the scour morphology downstream of the stepped-baffle weirs are …

Scour morphology downstream of submerged block ramps

M Esmaeili Varaki, S Mahmoudi Kurdistani… - Journal of Applied …, 2021 - Taylor & Francis
In this study, the effects of geometric parameters, such as the ramp roughness size and the
ramp slope on the scour parameters downstream of block ramps, are experimentally …

Analysis of equilibrium morphologies downstream of a PK weir structure

M Palermo, B Crookston, S Pagliara - World Environmental and …, 2020 - ascelibrary.org
Scour processes downstream of hydraulic structures are some of the more challenging
problems for hydraulic engineers because of the potential for scour to cause incidents and …

[HTML][HTML] Scour evolution downstream of grade-control structures under unsteady flows: A theoretical analysis

J Di Nardi, M Palermo, FA Bombardelli… - Journal of Hydro …, 2023 - Elsevier
River restoration projects often make use of grade-control structures in order to prevent
channel degradation, improve their ecological resources, and regulate floods. The time …

Analytical approach for predicting local scour downstream of submerged sluice gate with an apron

A Mostaani, AH Azimi - International Journal of Sediment Research, 2022 - Elsevier
A new analytical method was evaluated for predicting scour profile downstream of a
submerged sluice gate with an apron. The differential equations between bed Shear stress …

Comparative evaluation of energy dissipation over short stepped gabion and rigid spillways

SH Rajaei, SR Khodashenas… - Journal of Hydraulic …, 2020 - Taylor & Francis
The energy dissipation in a gabion stepped spillway is compared with that of a rigid
structure. The prototype had one, two or three steps, and models of rigid and gabion …

The phenomenological theory of turbulence and the scour evolution downstream of grade-control structures under steady discharges

J Di Nardi, M Palermo, FA Bombardelli, S Pagliara - Water, 2021 - mdpi.com
A more complete understanding of scour mechanisms for flows downstream of grade-control
structures, including their temporal evolution, has the potential to lead to improved predicting …