1) - .
2) .
3) :
W = 
, /
4)
d = 
,
, b - , .
5) , R , I h , .
6)
R l 
+ 
h =0,048 2,8 1,36+0,25 4,58=1,328
l - , ;
- , (5, .14.3);
- .
(5,. 9) (6, .II, . VII.13).
7) .
(R l + 
h)i 
∆P,
1,328 1,79
, L, L, L, :
L + L + L 
L
L =3 F=3(13,6+20,61)=106,17 3/
90 + 25 + 25 106,17
140 106,17
3.
3
| ,L, 3/ | ,l, | , W,/ | , ( ), | , F, 2 | , d, | , R,/ | , β | ,h, | ∑z | , Z | , + Z, | |||
| 4 | ||||||||||||||
| 2,8 | 0,66 | 140  270
| 0.0375 | 0.048 | 1.36 | 0.183 | 0.25 | 4,58 | 1,145 | 1,328 | .. ξ=2 ξ=1.28 ξ=1,3 |
: 
%
: , 1 , , .
. - .
1. 45-2.04-43-2006 . 2007
2. 2.04.01-03. , . - ., 2003.
|
|
|
3. .., .. . 1. . - .,, 1990.
4. .. . - ,1974.
5. .., .. , . ., 1991.
6. .. . . .1 2. - , , 1976.
7. . ., . ., . ., . .
" " " " 70 04 03, 70 02 01- , 2004.
