Graded Sediment Longshore Transport

The uniform approach by definition of size of the charge of a longshore flow of deposits for conditions of coarse-grained and sandy beaches is considered. The approach is based on power dependences. Factors of dependences are calibrated by experimental data for a concrete site of coast and calculations of the charge of the deposits, using technique of the Ackers-White. Comparison of calculations of longshore transport of deposits with the data of laboratory experiences is executed. Necessity of the account of sorting of a material on grain sizes along a cross structure of a beach slope is shown. The model of rearrangement of a beach in a vicinity of cross hydraulic engineering constructions is developed. The model uses the developed design procedure of deposits and takes into account diffraction of waves in a zone of a wave shadow of a construction.