Paper No. 6558 A MODEL STUDY OF THE BEHAVIOUR OF BEACHES AND GROYNES by Patrick Hubert Kemp, B.Sc.(Eng.), Ph.D., A.M.I.C.E. Lecturer in Civil Engineering at University College, London For written discusion SYNOPSIS The Paper briefly reviews the factors which influence the shape of the natural shoreline inthe absence of groynes. A series of model experimentsis then described, in which three types of impermeable groyne were subjected to a cycle of accretion, depletion, and recovery, underthe action of waves of different characteristics...