Rubble 



as Toe Protection 



Rubble Toe Protection 



W = 



w, H^ 



and B = 0.4d» 



Rubble 



as Foundation 



Rubble Foundation 



0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 



(After Brebner and Donnelly, 1962 ) 



Depth Ratio £l 

 d. 



Figure 7-99. Stability Number for Rubble Foundation and 

 Toe Protection 



7-202 



