77° 



25° 



r 



^ 



\ 



\^ 





SHADED AREAS ARE <l 00 PSI 



♦ 08 



\ 

 \ 



• 07 \ 



• I 2 , ^/ 



/ 



/ 



77° 



FIGURE 12 AREAS OF HIGH (>1 .0 PSI) AND LOW COHESION IN THE TOTO 



50 



