Discussion of 'Hydraulic Characteristics of Gabion-Stepped Weirs' by Chaiyuth Chinnarasri, Somachai Donjadee, and Udomsak Israngkura

摘要

The authors have studied the important characteristics of flow over gabion-stepped weirs by conducting a detailed model study and suggested Eq. (2) of the paper as a rough estimate of the occurrence of skimming flow on gabion-stepped weirs. The discussers developed the following equation for the onset of skimming flow on gabion-stepped weirs based on available experimental data (Kells 1995; Peyras et al. 1992; Stephenson 1979; Degoutte et al. 1992) with a coefficient of determination of 0.80.