Side
af
764
Forrige
Næste
79
OF ENGINEERING FORMULA
■Earthwork Tables—continued.
Cutting. Bank.
28*5 31*2
Hill slope —- = 1'425 Hill slope —— = 2’08
2Å) It)
1 1*5
Back slope — = • 5 Bank slope = 1 50
c = -925 b = 058
Fig. 6.
- = — = -753; Table VII, Kc = -535.
c '920
10‘7
20 x 535 = 10 • 7,width for cutting; h=—— =11-6.
9 3
20 — 10 7 = 9’3, width for bank; h'= — = 16.
" 58
Areas
ABD 9-3 X 16 _
AEC “ 10-7 x ll-6~
1'2 = r nearly.