.19
.. 1: . , , 20018. 32 .
: , ..
______ _____ ______________2018 .
- :
______ _____ ______________2018 .
\
..
: ,
.
: 1.
.
2. .
___ (. 7).
______________________,
Q =____ /,
L =_____,
γ =__º,
____________.
. , , .
. ( ) ( ).
, .
5, 10 15 . . 2-3 40-80 .
, , .
, . , . , , , . . , , - .
|
|
. . .
, () (). , .
. , , - , 6-8- .
. , , .
(. 1, 1, 1)
. 1. :
1 - ; 2 ; 3 - ; 4 ; 5 ; 6 ; 7 - ; 8 ; 9 - .
. 1.
. 1.
(. 2, 2).
. 2. :
- , - , .
1 , 2- , 3 .
. 2.
. 3.
. 4.
. 5.
9 , , ( ),
. 6.
. 7.
. 8.
. 9.
- 1200, F (.2) :
F = ¼ b2 f tgφp, (1.1)
|
|
F = ¼ b2 (f tgφp +tg300), (1.2)
F = ¼ b2 (f tgφp +2tg300), (1.3)
b , ;
f = 0,8 - ;
φp- , ., (. 1).
F Q V (.1).
Q/d=3600 F V k, (1.4)
F = Q/ (3600d V k),
Q - , /;
d- , /3 (. 1);
V - , / (. 1);
k = 0,9 - .
b = 2 , (1.5)
B = b + 0,1, (1.6)
( 22644 - 77). .
= 300, 400, 500, 650, 800, 1000, 1200, 1400, 1600, 2000, (2250), 2500, (2750), 3000 .
B = __________ .
2.
Vy = Q / 3600dFk, (1.7)
F - , 2.
F = ¼ b2 f tgjp, (1.8)
F = ¼ b2 (f tgφp +tg300), (1.9)
F = ¼ b2 (f tgφp +2tg300), (1.10)
b = 0,1, (1.11)
, - , ;
f = 0,8 - ;
φp - , . (. 1).
3. ,
d =0,5 , (1.12)
L= +100, (1.13)
dp =0,1 , (1.14)
np= (1.15)
B - , ;
L - , ;
t - , (. 6);
D , ;
d , ;
n - , .
4.
N= (Q/360 h0)(Lr )+0,02 q L V, (1.16)
Q - , /;
= 0,06 - ;
Lr = L cosγ - , ;
= L sinγ - , ;
γ - , =0, , + -.
q = 30 -
, /;
. - , ;
V - , /;
η0 = 0,8 - .
(.2):
_________;
, N. = __________;
, / n = _________;
, d = __________.