"A Model Study of the Behavior of Beaches 



and Groynes" 



Kemp , P . H . , Journal of the Institution 



6206GR0001 



of Civil Engineers, London, Vol, 

 1962, pp. 191-210. (TC535 ,K4) 



22, 



This paper reviews factors which influence the shape of the 

 natural shoreline in the absence of groins. A series of model experi- 

 ments is then described; three types of impermeable groins were sub- 

 jected to a cycle of accretion, depletion, and recovery, under the 

 action of waves of different characteristics. Attention is drawn to 

 the effect of the alignment and type of groin on the rate of longshore 

 transport, littoral currents, scour, and shoreline orientation. Each 

 arrangement of the groins is seen to possess characteristic advantages 

 and disadvantages which can influence the choice of groin and its 

 alignment in given circumstances. Within the limitations of the groin 

 experiments it would seem that the shoreline orientation and rate of 

 longshore transport can be varied by modifications to groin type and 

 alignment, Shoreline reorientation can reduce the littoral current 

 and consequently reduce the scour. By an appropriate choice of groin 

 type and alignment, it should be possible to orient the shoreline in 

 such a way that the effects of storm attack are reduced. 



Key Words - Experimental/Model/Accretion/ERosion/Transport-normal/ 

 Scour/Structural -design/High/Low/System/Long/ Short/ 

 Impermeable/ 



"Coast of Southern California - Special 

 Interim Report on the Ventura Area, 

 Cooperative Beach Erosion Control Study" 

 U. S. Army Corps of Engineers, House Docu- 

 ment No. 458, 87th Congress, 2nd Session, 

 June, 1962. 



Key Words - House Document/Not Annotated/ 



6206GR0002 



"Raritan Bay and Sandy Hook Bay, New Jersey" 

 U. S. Army Corps of Engineers, House Docu- 

 ment No. 464, 87th Congress, 2nd Session, 

 June, 1962. 



Key Words - House Document/Not Annotated/ 



6206GR0003 



"The Nearshore Movement of Sand at Durbin" 



6207GR0001 



98 



