I-IO 



-100 



I-IO 



-10 



•10 



- I 



■10 



-0.1 



6 8 10 20 40 60 100 200 400 600 1,000 2,000 4,000 



J /~q' (orier Wiegel, I960) 



Figure 2-11. Relationship between k , H/d , and T "^ g/d . 



2-49 



