MEASUREMENT OF LAYER THICKNESS AND ESTIMATION OF AS-BUILT BULK DENSITY AND VOID POROSITY IN A ROCK ARMOUR REVETMENT AT BEESANDS, SOUTH DEVON.

Results of the measurement of the as-built parameters of armour layer thickness coefficient, bulk density and void porosity of a double-armour layer rock revetment constructed at Beesands, South Devon, during 1992 are presented. Using a number of different surface profile surveying techniques for the determination of armour layer thickness (corresponding to different site practices) layer thickness coefficients, bulk densities and void porosities were calculated and compared for the section studied.