- - , .
2.5.1.1
n = C\Yn, (3.50)
n - ;
- , 3\.
Yn - , 3.
Y = l·b·h, 3 (3.51)
l - , .; 1=78.
b - , .; b = 21.
h - , .; h = 5,5.
Y= 78·21·5,5 = 9009 3
( ). ( 2) :
,3/. (3.52)
∑g 2 , 3\.;
∑g = m-g, 3/. (3.53)
m - , ;
go - 2, , 3/.;
go = 120 3 / . . 33 [13]
gl - 2 , 3 /3.;
gl= 2,503/3.
= 200·128/2-0,3 =15058,82 3/.
n = 15058,82 /9009 = 1,67
n 
3 .
S = C/3600·V, 2. (3.54)
S - , 2.;
V - , /;
- , 3 /.;
/ (3.55)
h - , .;
h = 6
t - ; t = 8C . [13]
t - ; t = -14
/
S = 28235,3 / 3600·1,53 = 5,13 2
n = S/lh, . (3.56)
1h - , 2.
1000 x500
S1 = 1·0,5 = 0,5 2
n = 5,13/0,5 
10 .
10.
n = Sp / S1p, (3.57)
Sp - , 2.
Sp = 0,7S = 3,59 2.
S1 - , 2.
1,555 0,25 ;
S1 =1,555x0,25=0,38 2.
n=3,59\ 0,38 = 10
, . , , . .
