Effect of Abutment Shape on Bed Changes by the Means of Physical Model
Journal Title: Journal of River Engineering - Year 2015, Vol 3, Issue 1
Abstract
Scour is a natural phenomenon which is caused by the water flow of rivers or floods; and it leads to erosion by the means of water flow. It erodes and transfers particles from the bed, banks and around the bridge piers. In many cases, it leads to failure of bridges and hydraulic structures. In this paper, we investigated effect of abutment shape on bed changes in the laboratory using uniform sediments with the diameter of 0.08 mm which were exposed to flow of 20 lit/s in the three heights of water flow (H=11, H=12, H=13) under condition of clear water. The results showed that semicircular abutment showed better performance in comparison with trapezoidal and triangular abutments.
Authors and Affiliations
Zagros Salami - Mohammadreza Pirestani
Keywords
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