Figure 2 . Dolos definition sketch 



10. This structural fragility of the dolos can be managed through the 

 careful use of a comprehensive design procedure that permits calculation of a 

 design stress level. The dolos is unique in that analytical methods, as 

 described in this report, can be used to optimize the shape for structural 

 strength, depending on the given design conditions, without significantly 

 affecting the hydrodynamic stability. Dolosse can therefore be safely used as 

 long as the in-service structural response can be determined. The primary 

 advantages of the dolos unit can be summarized as follows : 



a. High hydrodynamic stability and efficient wave energy 

 dissipation. 



b. High porosity, reducing overtopping. 



c. Measurement of prototype structural response at Crescent City. 



d. Much experience with the unit, both in the lab and in the 

 field. 



e. Ability to optimize shape for hydrodynamic and structural 

 stability. 



f. Shape is conducive to small-scale structural instrumentation 

 allowing measurement of design stresses in the laboratory. 



g. Ease in casting, storing, transporting, and placement. 



h. No members thick enough to produce thermal cracking during 

 curing. 



