APPENDIX A 



VALUES OF r FOR QUARRYSTONE EMBANKMENT; d /H' < 3 



s o 



Table A-1. Values o£ r for application 





at 



d /H' < 3. 

 s o 





Slope (cot 



e) 



H/k 1 



V 



r 



1.5 





3 to 4 



0.60 



2.5 





3 to 4 



0.63 



3.5 





3 to 4 



0.60 



5.0 





3 



0.60 



5.0 





4 



0.68 



5.0 





5 



0.72 



■•^H' was used to derive these values from 

 o 

 experiments with d /H' > 3; for application 



at d /H' < 3, use H, where H is the wave 

 so 



height at the proposed structure location. 



Filter layer 

 ^ ^__^^Armor layer; 1.5 to 3 stones thick 



Embankment 



7^//^/^/y/::^yy^yy^vy4<>/// 



Figure A-1. Sketch of quarrystone embankment (riprap) 



19 



