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Pier Scouring under Live-Bed Condition


Author(s):

Swapnil Srivastava , MMMUT Gorakhpur

Keywords:

Scour, Local scour, Scour depth, Live-Bed Condition

Abstract:

Problem of local-scour is key among bridge pier and abutments, local-scour of piers has lead to failure of many bridges in past and hence it is an active topic of investigation among various researchers. The problem of scour worsens once the stream gets flooded. When floods occur the scour does not keeps itself limited to stream, whereas it increases its extent and reaches the low-lying adjoining areas of the stream and tends to scour the vicinity of the obstruction being offered to the flood flow. In spite of the efforts and work on the topic during the last five or six decades, the time evolution for depth of scour and its ultimate “equilibrium” value remains a subject of concern for engineers and investigators. In the thesis extensive work and analysis have being carried out to study the scouring behaviour of pier under live-bed condition, and to analyze its scour depth in relation to various parameters related to scour depth. Data from various studies conducted in past have been adopted for analysis. Dimensional analysis followed by regression analysis has been carried out to predict the scour depth. The predicted scour depth has been analyzed for different non-dimensional parameters. The data has also been analyzed for temporal variation to estimate the time run for equilibrium scour depth.


Other Details:

Manuscript Id :IJSTEV2I11073
Published in :Volume : 2, Issue : 11
Publication Date: 01/06/2016
Page(s): 95-100
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