0 0,7 , (.1.4).
0: ( )
σγ- = 0;
σ- = = 30,4 ;
σ- = + = 15,40 + 80 = 95,40 .
:
- = 0,759 - = 0,720
- = 0,655 - = 0,643
∆σ- = 0,104, ∆σ- = 0,077.
=1,6;
- = 0,759 1,6(0,104 0,077) = 0,716;
ρd- = 2,69/(1 + 0,716) = 1,568 /3;
γ =1,568(1 + 0,160)9,808 = 17,840 / 3.
n: ( )
γ|n = 17,840 + 0,05*13,570 = 18,519 /3;
σγ-n = (17,840 + 18,519) 13,570/2 = 246,696 ;
σ-n = 0,2*30,4 = 6,080 ;
σ-n = 0,2*80 = 16 ;
n = 1,1;
σ-n = 6,080 + 246,696 = 252,776 ;
σ-n = 252,776 + 16 = 268,776 .
:
-n = 0,652 -n = 0,645
-n = 0,624 -n = 0,622
∆-n = 0,028, ∆-n = 0,023.
-n = 0,652 1,1(0,028 0,0 23) = 0,647; 0,716
ρd-n = 2,69/(1 + 0,647) = 1,633 /3;
γn = 1,633(1 + 0,16)9,808 = 18,582 /3.
:
|18,582 18,519 | = 0,063, , γn = 18,582 /3.
ρd- = 1,601 /3, γ = 18,211 /3, - = 0,682.
.
1.4.1
.
. .
(1.12)
; , ( ); n ; m - , ; Ci fi () i- li; Ni Ti i- , ; D0 , , .
K, , --01-95 /1/.
|
|
, (1.13)
a - , 1.6 /1/ , h = 14,27 , P0= 72,56 , 1,07; ηn , IV , 1,10; ηf , 1; ηc - , 0,95.
[K]:
.