Abstract Riverbank erosion has significant geomorphological as well anthropogenic consequences. The impacts include form changes such lateral channel migration, meanders, expansion, etc. effects the threat to floodplain human habitation, agricultural land, and stability of instream hydraulic structures buried pipelines. Channel dredging for extraction sand gravel seen a multi‐fold rise in last few decades. Therefore, riverbank response mining gains importance river basin management. Sandpits...

Unregulated sediment dredging near riverbanks considerably increases the risk of bank failures. This study examines how proximity mining pits influences riverbank stability by conducting controlled laboratory flume experiments on three slopes: 25°, 31°, and 40°. The analysis considers scenarios—upstream pit, instream no-pit conditions while evaluating key hydraulic parameters, including mean streamwise velocity, Reynolds shear stress (RSS), turbulent kinetic energy (TKE). These measurements...

Channel dredging has become a common phenomenon across several fluvial systems. Pits dredged in the riverbank can influence downstream turbulence and affect bank slope central channel morphodynamics. Erodible bed experiments were conducted laboratory flume having cross section with three different slopes, i.e., 25°, 31°, 40° without mining pit. Flow over near toe was most affected by pit excavation at upstream. Turbulence levels amplified within flow toe. The logarithmic scaling range of...

The present work investigates the combined effects of upstream sediment mining pit and vegetation on riverbank using emergent rigid beyond toe flow structure morphological changes due to fluvial erosion. A steep gradient streamwise velocity other turbulence parameters such as Reynolds shear stress (RSS), transverse RSS, turbulent kinetic energy (TKE) at interface vegetated unvegetated part test segment was observed. cross-sectional analysis showed that increased main channel, sandpit even...

Abstract Sediment dredging has been an ever‐growing issue, especially in developing nations with high demand for concrete filler material. River systems are adversely affected by sediment mining, resulting decreased stability of the riverbed and riverbanks. Nature‐based solutions riverbank erosion have a research topic that led to proposal vegetation on However, little is known about extent required negate devastating effects mining because dense severely affects flow structure becomes waste...

In hydraulic river engineering, bank protection is crucial to preserving natural rivers, lands, and bridges. As erosion-protective structures, spur dikes protrude outward from the riverbank in different directions divert flow away bank. The present study examines temporal variation bed morphology scours around rectangular-shaped with orientations such as 60°, 90°, 120°. addition, formation of maximum scour depth compared condition when downward seepage applied....

Sand dredging from the rivers has become an uncontrolled practice that harms river's ecology. It affects flow structure of river, leading to further deterioration morphology. Several field investigations and experimental studies have conformed erosive effects sand mining pits upstream downstream locations. We conducted laboratory-scale flume experiments study impact a pit on secondary across riverbank cross-section. Three bank slopes were tested, namely, 25°,31°,...