Experiment for Determination of Dry-Laid Stone Armour Layer Thickness of Rubble Mound Breakwaters
Sun Jingshi Zhu Yiming Research Professor, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456 Associate Professor, Dalian Aquatic Product Institute, Dalian 116024
Through hydraulic model experiment and site investigation, this paper has derived a calculation formula of dry-laid stone armour layer thickness of rubble mound breakwaters for fishery harbours. The influences of the friction force between stone blocks and the variations of wave length or period and water depth are considered in the formula. The calculated results of several existing structures are in good agreement with field data. This formula is more practical than those ever published both at home and abroad, and has been adoptted by the technical standards of aquatic projects published by the Ministry of Agriculture of China. It is applicable for the calculation of dry-laid stone armour layer of breakwater for small- or medium-size harbours.
【CateGory Index】： U656.2