교각 세굴 방정식에 의한 세굴심 예측의 비교 분석 = Comparison of Scour Depth by the Scour Prediction Equations

다국어 초록 (Multilingual Abstract)

This study consists of several sources of relatively field data sets. Scour depths have been computed using bridge pier scour equations and field data which was already described. Several simplifications and assumptions for the equations have been made. The value of V_(c) was calculated by using Neil's relationship for the required V_(c) of each scour equation. In most case, the piers were assumed to be aligned with the flow. This assumption can be made because the alignment was not given for many data and because in each case the alignment factor was a multiplicative factor. This factor would be the same for each equation and would not effect the results.
For a number of equations, the conditions of the laboratory experiments are not defined. In addition, the ranges of the various parameters for the equations are still valid, but typically unknown. Even if the range of data used in the laboratory study is known, it is quite uncertain how to correlate the small-scale models to the prototype conditions. The purpose of this study is to compare seven bridge pier scour equations by using the field data. The limitations of each equation will be examined to provide the hydraulic engineers with the guidance for scour at bridge piers.