bearing_class.pdf
TRANSCRIPT
-
( . , &. , )
:
: http://apapad.users.uth.gr/sm2.shtml
1.
2.
3. Mohr-Coulomb (c,)
4. ..
5. &Prandtl (1921) Terzaghi (1943)
7. :: : :
7. :: : :
8. =0 8. 0, 9. 9.
( : )
6. &
()
-
Terzaghi (1943)
()()
Terzaghi (1943)
Terzaghi (1943)
()
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Terzaghi (1943)
Terzaghi (1943)
PBR = quB
()
Terzaghi (1943)
()
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< 25 f 2B
d B
d & Lf
( C-7)
()
Vesic (1975) :qult = cNcscdcic + vqsqdqiq + 0.52*sdi + u
= - 2eBL = L - 2eL
-
Vesic (1975) :qult = cNcscdcic + vqsqdqiq + 0.52*sdi + u
LL
.. , , , ,
& , .. , :
, c*=2/3c & tan*=2/3tan
, : tan* = (0.67+Dr-0.75Dr2)tan
,
-
tan = /V
: = : =2/3
u = min [ Vutan , (V uL)tan ]
()
tan = /V
(. )
u = min [ Vutan , (L)Su ]
Su = = (=1: , =0.5: )
()
-
D
() &
:D = f (, )
: D: D: ( )
() (, , )
D
()
()
-
D
() De (D > De)
- ()- ()- () De = 0.75 1.5m p >
- () De 0.60m,
- ( ) = (0.5 1.0)
( ) EC-7 DIN4017
()
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EC-7 DIN4017 ( )
()
EC-7 DIN4017 ( )
()
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EC-7 DIN4017 ( )
()
EC-7 DIN4017 ( )
()