.
, : 4 1 , , .
:
1. 4(. 17).
2. (. 18).
3. .
4. 1:500 0,25 .
5. (. 19).
.
. , .
:
h = b ;h = b,
10 .
h= (hx+h)/2.
. (Σ) (Σb) , ; :
(Σ Σb)/2 = Σh / 2 = Σh .
.
, :
fh= Σh.
:
fh≤ fh,
fh = 50√L fh = 10 √n(L , ;n ).
, δh = - fh / n. , Σδh = - fh.
hi = hi + δi.
i = Hi-1 + hi,
Hi-1 .
H = H + Σh.
. :
' = +; '' = +b; = (' + '')/2,
3, ;
, , .
, , ,
|
|
= .
. 1:500 . , (. 21).
. 1:500 2020 . . 0,25 , . (. 22).
. (. 23).
, :
= (Σ 1 + 2Σ 2+ 4Σ 4) / 4 n,
Σ 1 , ;
Σ 2 - , ;
Σ 4 - , .
hi = - i.
.
,
d , ;
h1 h2 ,
.
:x1 + 2 = d.
.
.19. S,.
V = Sh.
:
V = (ΣV + V) / 2;
;
ƒv≤ 5%.
. 21.
. 22.
. 23.
17
. 4, | . 4, | ||
203,92 | 210,424 | ||
251,87 | 258,374 | ||
265,12 | 271,624 | ||
247,65 | 254,154 | ||
259,44 | 265,944 | ||
267,21 | 273,714 |
17
203,92 | 210,424 | ||
251,87 | 258,374 | ||
265,12 | 271,624 | ||
247,65 | 254,154 | ||
259,44 | 265,944 | ||
267,21 | 273,714 | ||
274,15 | 280,654 | ||
286,17 | 292,674 | ||
261,36 | 267,864 | ||
279,92 | 286,424 | ||
291,38 | 297,884 | ||
299,39 | 305,894 | ||
288,77 | 295,274 | ||
277,34 | 283,844 | ||
302,64 | 309,144 |
18