Influence of grain size, pile shape, and hydrological parameters on scouring
Abstract
The objective of this work was to establish the influence of river bed granulometry, bridge pile shape, and hydrologic parameters on scour depth based on a physical model. For the experimental development, granular soil from a river was used and laboratory tests were carried out to determine the particle size distribution using materials whose classification, according to the Unified Soil Classification System (USCS), is SP (poorly graded sand) SW (well-graded sand), SP-SC (poorlymgraded sand with clay). In addition, a statistical analysis was performed to determine the significant differences between each of the variables and their influence on the process. It was found that theremis a strong relationship between the shape of the pile, flow rate, and granulometry, with the hydrodynamic characteristics of the flow as it passes through the piles, as well as the scour depth.
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