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原文传递 Equilibrium Beach Profile with Net Cross-Shore Sand Transport

题名：	Equilibrium Beach Profile with Net Cross-Shore Sand Transport
其他题名：	Dean,R.G.1991."Equilibrium beach profiles:Characteristics and applications."J.Coastal Res.7(1):53-84.
正文语种：	英文
作者：	Tingting Zhu
关键词：	Beach profile;Equilibrium;Sand;Cross-shore transport;Bed load;Suspended load
摘要：	Periodic beach-fill placement and frequent overwash result in net offshore and onshore sand transport, respectively. Three tests consisting of fifty 400-s runs were conducted in a small-scale wave flume to examine the effect of net cross-shore sand transport on an equilibrium profile. The foreshore of an equilibrium profile with no net sand transport shifted seaward after periodic sand placement near the shoreline. Frequent sand overwash resulted in the landward shift of the shoreline. The profile changes for the three tests were relatively small and the shoreline shifts were less than 0.1 m. An analytical model for an equilibrium profile with net cross-shore sand transport was developed by approximating existing formulas for onshore bed load and offshore suspended sand transport in the inner surf zone. The model predicted the horizontal shift of the equilibrium profile under net cross-shore sand transport, which was the maximum at the shoreline and approached zero at the closure depth. The model calibrated using the three tests was used to estimate the seaward shift of the shoreline on periodically nourished beaches on a prototype scale.
出版年：	2018
论文唯一标识：	P-108Y2018V144N06004
英文栏目名称：	TECHNICAL PAPERS
doi：	10.1061/(ASCE)WW.1943-5460.0000469
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
拼音刊名(出版物代码)：	P-108
卷：	144
期：	06
页码：	34-43