Results 21 to 30 of about 2,102 (256)
Ain Shams Engineering Journal, 2013 Local scour downstream stilling basins is so complex that it makes it difficult to establish a general empirical model to provide accurate estimation for scour depth. Lack estimation of local scour can endanger to stability of hydraulic structure and can
Yasser Abdallah Mohamed Moussa
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Scour depth model for grade-control structures [PDF]
Journal of Hydroinformatics, 2017 Abstract Grade-control structures (GCS) are commonly used to protect fish habitat by preventing excessive river-bed degradation in mountain streams. However, flow over the GCS can cause localized scour immediately downstream of the weir. This paper aims to develop more accurate models for prediction of the maximum scour depth downstream ...
Bahram Gharabaghi +3 more
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Geosciences, 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
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Shock and Vibration, 2020 As a cross-sea or river deep-water foundation, it is clear that the caisson foundation will be subjected to significant lateral dynamic loads due to winds or waves and suffer from scouring under its long-term effect.
Wenbo Tu +3 more
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Empirical Formulas to Predict the Maximum Scour Depth With Debris Accumulation Around A Single Cylindrical Bridge Pier: An Experimental Study [PDF]
Engineering and Technology Journal, 2020 The probability of debris accumulation near bridge piers during the heavy storm and river flood convert the hydraulic action of flow and increase the scour depth due to the reduction of flow area and the increase in velocity of flow.
Mahmoud Saleh Al-Khafaji, Aysar Al-Awadi
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Length Parameter for Scaling Abutment Scour Depth [PDF]
Water, 2020 Flow constriction caused by bridge abutment increases bed shear stress and thus enhances local scour. For scaling the maximum scour depth at the abutment, either abutment length or flow depth has been empirically used in previous studies. By performing a step-by-step analysis, this study proposes a new length scale, which is able to represent combined ...
Puer Xu, Niansheng Cheng, Maoxing Wei
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SCOUR NEAR SPILL-THROUGH TYPE ABUTMENT ON CLEAR-WATER SCOUR CONDITION FOR MULTI-SECTION CHANNELS
Journal of Civil EngineeringScour is a natural phenomenon caused by erosion due to water flow on the alluvial channel bed and channel wall. In fact, scour happened in the bridge abutment is total scour, that is a combination between local scour, general scour, and constriction ...
Jaji Abdurrosyid, Achmad Karim Fatchan
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Experimental Investigation of Scour Prediction Methods for Offshore Tripod and Hexapod Foundations
Journal of Marine Science and Engineering, 2020 Scour prediction is essential for the design of offshore foundations. Several methods have been proposed to predict the equilibrium scour depth for monopiles.
Xuan Ni, Leiping Xue
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Estimation of Scour Depth at Bridge Piers by Using FASTER Model and Experimental Formulas [PDF]
مهندسی 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
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Maximum Abutment Scour Depth in Cohesive Soils [PDF]
Scour and Erosion, 2010 Most conventional methods to predict the depth of abutment scour were developed with flume test results using cohesionless soils, and those methods have been used to the abutment scour depth prediction in cohesive soils. Generally floodplains where most abutments are located are composed of less erodible soils such as cohesive soils.
Jae Oh, Seung +3 more
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