Results 51 to 60 of about 2,467 (253)

Effect of Cohesive and Non-Cohesive Soils on Equilibrium Scour Depth

Tikrit Journal of Engineering Sciences, 2007
In this research ,the effect of cohesive soils ( clay ) and non –cohesive soils sand on equilibrium scour depth was studied .Experiments were carried out on two types of clay and two types of sand as a bed material using an obstruction ( pier ) to create
Saleh Issa Khassaf
doaj   +1 more source

Experimental Scours by Impinging Twin-Propeller Jets at Quay Wall

Journal of Marine Science and Engineering, 2020
Experiments were conducted to investigate the seabed scour holes due to the interaction between the twin-propeller jet and quay wall. Vertical quay wall was modelled by using a polyvinyl chloride (PVC) plastic plate in a water tank.
Yonggang Cui, Wei Haur Lam, Zhi Chao Ong, Lloyd Ling, Chee Loon Siow, Desmond Robinson, Gerard Hamill   +6 more
doaj   +1 more source

Physically based formula for the maximum scour depth induced by a propeller jet

Physics of Fluids, 2023
In the last two decades, many studies have been dedicated to the employment of predictive formulas able to assess the maximum scour depth produced by propeller jets. Owing to the complexity of the phenomenon, most of the literature formulas were built on empirical arguments, making them susceptible to scale issues and not fully coherent with the ...
Francesco Coscarella, Giuseppe Curulli, Nadia Penna, Roberto Gaudio   +3 more
openaire   +1 more source

Hydraulic reconstruction of catastrophic drainage from the Late Glacial, Lake Fraser, British Columbia, Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Glacial Lake Fraser, which formed in British Columbia against the retreating Cordilleran Ice Sheet, stored ~520 km3 of water before its near‐total drainage into the Salish Sea during an outburst flood event. Despite the impact of the outburst flood on sediment transport and landscape evolution in the Fraser River valley, its peak discharge and
Sean M. Loeffler, John J. Clague, Brendan G. N. Miller, Sophie L. Norris   +3 more
wiley   +1 more source

Interaction of Bridge Pier and Abutment on Local Scour Around Them [PDF]

علوم و مهندسی آبیاری, 2016
The local scour around bridge pier and abutment in recent years has been widely studied by different authors. Scant information exists as to how bridge pier proximity to abutment affects scour depth at an abutment and at a pier. Due to the fact that many
Morteza Arab, Mohammad Ali Zomorodian
doaj   +1 more source

Scour control around Submerged pipeline on the river bed using an impermeable Spoiler

Ain Shams Engineering Journal, 2021
Through experiments in a straight Plexiglass flume, the scour control performance of a spoiler installed under a submerged pipe laid on the river bed was studied.
V. Jabari, A. Masjedi, M. Heidarnejad, A. Kamanbedast, A. Bordbar   +4 more
doaj   +1 more source

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Experimental Study on Scour Characteristics and Protection Measures for Monopile on Sandy Coast

南方能源建设, 2020
[Introduction] Constructing the proper wind turbine foundation is important during the construction of offshore wind farm, and the monopile has been one of the main structures for the wind turbine foundation in recent years.
BI Mingjun, LIU Jinchao, SU Rong, WANG Hongqing, LIU Sha   +4 more
doaj   +1 more source

Enabling effective urban green space stewardship through planning: A qualitative comparative analysis in Southwest England

People and Nature, EarlyView.
Abstract Amid increasing urbanisation and biodiversity decline, ‘effective stewardship’ of urban green space (UGS) is a complex but critical nature‐based solution for long‐term environmental, social and economic gain. Combining stewardship and sense‐of‐place frameworks with European nature‐based solutions guidance, we investigate which social and ...
Fay Kahane, Melissa Ralph, Rosalind F. Shaw   +2 more
wiley   +1 more source

Evaluating Testability of Permafrost Models Through Physical and Thermal Testing in Complex Mountain Terrain, Yukon, Canada

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Due to its subsurface nature, permafrost cannot be directly observed with the naked eye or optical remote sensing. Consequently, accurately describing its distribution and thermal state is challenging. This is especially true in vast, remote environments, where obtaining comprehensive field data is demanding or improbable.
Ria Nicholson, Philip P. Bonnaventure, Nick C. Noad, Madeleine C. Garibaldi, Rabecca Thiessen, Will Kochtitzky   +5 more
wiley   +1 more source