Results 121 to 130 of about 3,693 (262)

Evaluation of the Adequacy of Design Specifications for Nonstructural Components in a Reticular Structure

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 10, Page 2132-2150, August 2026.
ABSTRACT Nonstructural components (NSCs) installed in large‐span reticular structures were frequently severely damaged during earthquakes, even when the primary structure remained intact. Existing seismic design specifications for NSCs were predominantly developed for upright structures such as multi‐storey buildings and offer no guidance for reticular
Xudong Zhi   +6 more
wiley   +1 more source

Flume experiments on macro‐roughness elements: Hydraulic response and potential influences on flood risk and habitat diversity

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Physical modelling of macro‐roughness elements for river restoration showed that backwater rise depends mostly on the relative structure width and approaching flow Froude number, with only minor differences among designs. Internal geometry modulated turbulent kinetic energy and flow partition between gap and wake.
Simone Speltoni   +3 more
wiley   +1 more source

Gravity Dams on Karst foundation

open access: yes, 2018
Foundations with dissolvable limestone possess difficult situation for the dams. Several dams around the world are either abandoned and never used such as Anchor Dam (USA) or requires continuous maintenance e.g Mosal dam (Iraq) due to the presence of karsts/cavities/caverns in their foundation.
openaire   +1 more source

Temperature fluctuations controlled episodic rockfall activity in the Rwenzori Mountains (Uganda) during the Holocene

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
The alignment between rockfall deposit surface exposure 10Be ages and Holocene temperature records suggests that major rockfall events occurred episodically in response to climatic fluctuations. We conclude that temperature and its evolution enabled mechanical, chemical or bio‐chemical enhancement of fracture progression.
Audrey Margirier   +8 more
wiley   +1 more source

Flow resistance parameterization for large wood in two‐dimensional depth‐averaged models: Effects of flow condition, blockage, and sediment

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Using 16 flume experiments and 2D modeling, we show that large‐wood flow resistance is not a fixed property of wood porosity but varies systematically with flow condition, blockage and most strongly sediment‐shaped bed topography. The drag coefficient and Manning's n are interchangeable, but calibration is essential where scour occurs.
Fikri M. Radiyan, Xiaofeng Liu
wiley   +1 more source

Knickpoint Morphology in Homogenous Substrates Controlled by Sediment Cover and Base‐Level Fall Rate

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Knickpoints can form spontaneously under constant forcing, without external perturbations. Flume experiments reveal three distinct morphologies, controlled by the balance between base‐level fall rate and sediment cover. A new conceptual model shows how erosion, sediment armouring and plunge pool dynamics govern knickpoint morphology, challenging ...
William J. Norriss   +4 more
wiley   +1 more source

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