0.0 



1.0 



2.0 



3.0 



1 rev/hr 

 112 rev/hr 



20 40 60 80 



Original vane shear strength (psf) 



100 



Figure 5. Original strength versus depth at 1200-Foot Site 

 for two vane rotation rates (1-inch diameter 

 vanes used) . 



43 



