Roughness coefficient of polyurethane-bonded revetment
This article analyzed the roughness coefficient pf polyurethane-bonded revetment (PBR) by laboratory testing. A wave basin was constructed, with a regular wave generator installed. Three types of revetments were constructed at the same time in the wave basin. Scales were painted on the revetments. Video cameras were installed to record the wave run-up. Measurements of wave height and wave period during the tests were not necessary, since a run-up estimation was entirely based on a linear relationship. The PBR's roughness coefficient could be interpolated from those f rock and concrete revetments. Three revetment solpes were tested. The roughness coefficient of the PBR was found to be in the range of 0.632 - 0.674, with a standard deviation of 0.042 - 0.053. Following this identification of the roughness coefficient of PBR, coastal engineers can design revetment crest elevations with confidence.
Authors
Abstract
This article analyzed the roughness coefficient pf polyurethane-bonded revetment (PBR) by laboratory testing. A wave basin was constructed, with a regular wave generator installed. Three types of revetments were constructed at the same time in the wave basin. Scales were painted on the revetments. Video cameras were installed to record the wave run-up. Measurements of wave height and wave period during the tests were not necessary, since a run-up estimation was entirely based on a linear relationship. The PBR's roughness coefficient could be interpolated from those f rock and concrete revetments. Three revetment solpes were tested. The roughness coefficient of the PBR was found to be in the range of 0.632 - 0.674, with a standard deviation of 0.042 - 0.053. Following this identification of the roughness coefficient of PBR, coastal engineers can design revetment crest elevations with confidence.
Citation
Tanapon Rattharangsri, Effi Helmy Ariffin, Nor Aslinda Awang, Qi Hongshuai. 2020. Roughness coefficient of polyurethane-bonded revetment. Digital NAHRIM Publication Repository.