Results 11 to 20 of about 1,045 (261)

Response mechanism of ice floods to scour and silting evolution in the Inner Mongolian channel and reaches of the Upper Yellow River

open access: yesShui kexue jinzhan, 2021
The alluvial river flooding problem in Inner Mongolia is prominent along the upper reaches of the Yellow River. Studying the scour and silting evolution of the river and the response mechanism of the floods can provide technical support for flood ...
Jinliang ZHANG, Jun LU
doaj   +1 more source

Characteristics of seabed scouring around sea platform of Hangzhou Bay Sea-Crossing Bridge

open access: yesShuili Shuiyun Gongcheng Xuebao, 2021
The sea platform of Hangzhou Bay Sea-Crossing Bridge is near the center the bridge. The pier groups under the platform combined with ramp piers and main bridge piers compose complex bridge pier groups which induce significant scour around sea platform ...
WANG Jinquan   +5 more
doaj   +1 more source

Numerical Investigation of Flow and Scour around Complex Bridge Piers in Wind–Wave–Current Conditions

open access: yesJournal of Marine Science and Engineering, 2023
A sea-crossing bridge is typically constructed in a marine environment with complex piers, and is susceptible to severe scour at the foundation. This study presents a numerical investigation on flow and scour around a complex pier, specifically focusing ...
Yilin Yang   +3 more
doaj   +1 more source

Temporal scour evolution at non-uniform bridge piers [PDF]

open access: yesProceedings of the Institution of Civil Engineers - Water Management, 2017
Scour at uniform cylindrical piers has received considerable attention in the past. However, bridge foundations can be subjected to the flow due to single or combined effects of long-term riverbed degradation, lateral shifting of the stream, contraction scour, local scour or other factors.
G. OLIVETO, M. C. MARINO
openaire   +2 more sources

Quantification of Modelling Uncertainties in Bridge Scour Risk Assessment under Multiple Flood Events

open access: yesGeosciences, 2019
Local scour is a dynamic process evolving during the lifetime of bridges as a result of the changes in hydrologic and hydraulic conditions. Current approaches for scour risk assessment are generally based on the evaluation of the equilibrium scour depth ...
Alonso Pizarro, Enrico Tubaldi
doaj   +1 more source

Experimental Characterization of the Flow Field around Oblong Bridge Piers

open access: yesFluids, 2021
The prediction of scour evolution at bridge foundations is of utmost importance for engineering design and infrastructures’ safety. The complexity of the scouring inherent flow field is the result of separation and generation of multiple vortices and ...
Ana Margarida Bento   +3 more
doaj   +1 more source

Clear-water scour evolution at dual bridge piers [PDF]

open access: yesCanadian Journal of Civil Engineering, 2017
For the efficient design of bridge pier footings, computation of time-evolution of scour depth around bridge piers is essential. In this paper, a semi-empirical model is developed to estimate the temporal variation of clear-water scour depth at a couple of identical cylindrical uniform piers in tandem arrangement. The experiments are carried out using
Yilmaz, Meric   +2 more
openaire   +1 more source

Experimental Study of Local Scour around Tripod Foundation in Combined Collinear Waves-Current Conditions

open access: yesJournal of Marine Science and Engineering, 2021
A series of laboratory experiments were conducted in a wave-current flume to investigate the scour evolution and scour morphology around tripod in combined waves and current.
Ruigeng Hu   +3 more
doaj   +1 more source

Temporal Evolution of Plunge Pool Scour

open access: yesJournal of Hydraulic Engineering, 2008
The temporal development of plunge pool scour was investigated using a novel experimental approach. Longitudinal profiles along the scour hole were recorded with an optical method to allow its definition at any time, from the initiation of scour to nearly the end-scour condition.
PAGLIARA, STEFANO, Hager WH, Unger J.
openaire   +2 more sources

Visualization Tests on Variation of Scour Front under a Pipeline in Steady Currents

open access: yesJournal of Marine Science and Engineering, 2019
The intersection of the span shoulder and the scour hole under a pipeline, also called the scour front, can affect the scour hole extension rate and the bearing capacity of the span shoulder, which is associated with pipeline spanning and failure ...
Liquan Xie, Yehui Zhu, Tsung-Chow Su
doaj   +1 more source

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