Results 41 to 50 of about 5,903,801 (203)

Three-dimensional numerical simulation of the influence of advancement patterns on local scour around dike

open access: yesShuili Shuiyun Gongcheng Xuebao, 2023
During the implementation of water conservancy and flood control and disaster mitigation, such as river closure and quick closure of earth-rock dike breaches, a strong local scour would occur at the gap or mouth.
LI Dengsong   +5 more
doaj   +1 more source

Estimation of Scour Depth at Bridge Piers by Using FASTER Model and Experimental Formulas [PDF]

open access: yesمهندسی منابع آب, 2017
Bridges are one of the most important river structures. One of the main causes of bridge failure is local scour at bridge piers. Yearly, Many bridges failed around the world because of disregarding hydraulic factors.
Elham Ghanbari Adivi   +1 more
doaj  

Experimental investigations of local scour around piles in a single-column and three-columns with multiple rows in steady current

open access: yesApplied Ocean Research
Local scour around pile groups is a common phenomenon in fluvial and coastal engineering, leading to a reduction in the bearing capacity of pile foundations frequently.
Ming Gong   +7 more
doaj   +1 more source

Comparison of Calculation Methods for Local Scour in Bridge Pier Foundation of Piles-Cushion Cap

open access: yesZhongwai Gonglu
In order to analyze the calculation methods for local scour in bridge pier foundation of piles-cushion cap, this paper listed the six common Chinese and foreign calculation methods, described their calculation process and selection of calculation ...
LIU Hui, JIANG Yanhua, YAN Jiechao
doaj   +1 more source

Local scour at single piers revisited [PDF]

open access: yes, 2014
The paper summarizes recent contributions of the authors on the effects of relative flow depth,relative sand size, time and fluid viscosity, on the scour depth at single piers.
Fael, Cristina   +3 more
core   +1 more source

Study of the time-dependent clear water scour around circular bridge piers

open access: yesJournal of Hydrology and Hydromechanics, 2017
The local scour around bridge piers influences their stabilities and plays a key role in the bridge failures. The estimation of the maximum possible scour depth around bridge piers is an important step in the design of the bridge pier foundations.
Aksoy Aysegul Ozgenc   +3 more
doaj   +1 more source

Numerical study of local scour effects on the lateral pile-soil interaction

open access: yes, 2016
Local scour usually occurs around offshore pile foundations, which may bring the reduction of both the effective stresses in the surrounding soil and the effective pile embedment. Until now, the effects of local scour on the lateral pile-soil interaction
漆文刚, 高福平
core   +1 more source

Numerical Investigation of Local Scour Around Double Triangular Prisms Using a DBM–LBM Coupled Model

open access: yesJournal of Marine Science and Engineering
Local scour is a typical hydro-sediment coupled process around near-bed obstacles. Its intensity and spatial distribution are jointly controlled by the surrounding-flow structure, sediment transport, and bed-feedback deformation.
Keyao Li, Aojie Sun, Yong Peng
doaj   +1 more source

Effects of pile caps on local scour at bridge piers [PDF]

open access: yes, 2006
The most existing pier-scour equations mainly apply to uniformly shaped piers. However, pier footings may often project above the streambed because of scour. This may be caused by either long-term bed degradation or local scour.
B. ONORATI   +2 more
core   +1 more source

Influence of flow unsteadiness on local scour at bridge piers: An energy-based perspective

open access: yesInternational Journal of Sediment Research
Local scour at piers is a major cause of bridge failures worldwide. While most existing studies assume steady flow conditions, actual flood events are inherently unsteady, with distinct rising and falling limbs that significantly modify scour dynamics ...
Qigang Chen   +3 more
doaj   +1 more source

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