I. _____________________________
________________________________________________________
II. .
III. .
, F = 50 2
ij , d =____
, h =____
, F= =_______2
IY. .
, max =___________/2
, = max Fn= _________________
Y. .
YI. ij .
YII. .
= /2
YIII. ( ).
____ _____________2014 . ϳ ________________
ϳ ________________
4
ֲ ̲Ҳ Ͳ
: .
I. .
, σ .
. ( ) ( 2055 43).
(.1)
σ
/2
σ
0,2 0,4 0,6 0,8 1,0 ε %
. 1
. . 30 40 0 (. 2).
, , .
() F0:
()
.2
II. .
.
II.1. .
III. .
1. 0,1 .
2. .
3. 1 2 .
4. .
|
|
5. .
, , 4.
F0 :
()
:
1. ?
2. ?
3. ?
4. ?
5. ?
˳:
1. .., .. . ., , 1969, . 3638.
2. .., .. . ., , 1960, .2530.
3. / .. .. ../, ., , 1986, . 109 111.