R/Ho 



0.4 



0.3 



0.0 



0.10 



0.15 



0.20 



0.25 



0.30 



0.35 



0.40 



R/Ho 



0.40 



Figure 60. R/H as a function of £ 

 using m as the predominant angle 



0.40 



Figure 61. R/H for plane- slope cases as a function of £ c 



114 



