p-y t p-y matlock (1970), lymon c. reese (1974) n · pdf file36 -: - single piles and pile...
TRANSCRIPT
1
T
–
CONG P-Y.
- -
-
- p-y
T
,
p-y
MatLock (1970), Lymon C. Reese (1974)
N
.
p-y
,
trong trong
I/ -
I.1
cong p-y
MatLock,
2
-
I.1.1 -
k
p-y.
I.1.1 p-y -
i
k = -y
p
p-y p-y
-
:
3
I.
I. -
-
- Cu
Ɛ 50
Ɛ 50 I.2.1.
I.2 50
Ɛ 50
0.02
0.01
0.005
-
β
= β> ; (2.1)
4
= β< ; (2.2)
= 9 (2.3)
= 3 + γ’ +J (2.4)
).
x:
γ’
J
= (
) (2.5)
= (
(
)
) (2.6)
- 50y
50y = 2,5BƐ 50 (2.7)
- -
(2.8)
y ≥ 8. 50y
5
I.2.1 -
I. -
.
1975)
0,61m 15,24m
107,64kN2/m
322,92kN2/m 3,66m.
-
-
γ’
-
-
= 11CB (3.1)
= (2+
+
) B (3.2)
6
Trong
= (
) N (3.3)
= (
(
)
) N (3.4)
:
- I. c:
≈ (0,2+
) (3.5)
- -
p = ( sk x)y (3.6)
I.3.1
7
H sk Ɛ 50 I.3.1
Cu (kPa) ÷ 24÷48 48÷95 95÷190 >190
sk (N/cm 3 ) 8,14 27,15 136 271 543
Ɛ 50 (N/cm 3 ) 0,02 0,01 0,007 0,005 0,004
I.3.1 sk 50
-
50y = Ɛ 50 (3.7)
Ɛ 50 3.1
-
p = 0,5 ( )
(3.8)
Ph -
k p= sk xy =
-
p = 0,5 ( )
- 0,055 (
)
(3.9)
-y y = 50y
y = 6 50y
- o
p = 0,5 - 0,411 -
(y - 6 ) (3.10)
y = 6 y = 18
- - ≥
18
p = - 0,75 – 0,411) (3.11)
8
C -
-
-
I.3.2: -
.
4 -
-
- γ
Ɛ 50
– Ɛ 50
I.2.1.
-
(2.2) (2.4)
9
J
-
(2.7).
- -
= 0,5(
)
(4.1)
- Khi ≥ 16
I. -
I.5 -
.
10
-
- ϕ γ
n
- =
; b = 45+
; = 0,4 ; = (
); (5.1)
= ; (5.2)
=
; (5.3)
=
( ); (5.4)
= ; (5.5)
= B ; (5.6)
= B ( b)-1) ; (5.7)
= B (b); (5.8)
- S
β β≠0.
β=0,
= ( (5.9)
= + (5.10)
γ’
β≠0, β=|β|
:
=
; (5.11)
= 1- ; (5.12)
11
= cos(β) √
√ (5.13)
= (4 – 3
+ 1) (5.14)
=
(B +xtan(b)tan(a)
) (5.15)
= (4 – 3
+ 1) (5.16)
= B (5.17)
= ( (5.18)
:
=
; (5.19)
= 1+ ; (5.20)
= (4 – 3
+ 1) (5.21)
=
(B +xtan(b)tan(a)
) (5.22)
= (4 – 3
+ 1) (5.23)
= ( (5.24)
{
(5.25)
12
-
- Trong
(5.9) (5.10) (5.18) (5.24)
- -
- =
nh
= (5.26)
.
- =
nh
= (5.27)
13
2:
(MN/ )
34,00
16,30
5,40
I.5
14
3:
- -
p = ( x)y (5.28)
Trong
(MN/ )
61,00
24,40
6,80
I.5.2 cho
- -
p = C (5.29)
15
parabol ( )
theo
m =
(5.30)
S
n =
(5.31)
C =
⁄ (5.32)
= (
)
⁄
(5.33)
= ( x) (5.34)
(5.29)
- m,
c .
- Khi y> -
-
(5.28) (5.29)
theo (5.28) -
(5.28) -
-
16
I.6 -
.
-
-
- .
c-
,
- c -
.
c -
= A +
β=0, t
theo (5.10) nh
(2.4). -
- (5.1) (5.25).
6 -y trong c-
17
- (2.4).
- =
nh theo :
=
(6.1)
, trong
(5.25).
- =
nh theo :
= (6.2)
- -
p = ( x)y (6.3)
Trong
= + (6.4)
(6.2 (6.3)
6.2:
18
6.3:
- -
p = C (6.5)
parabol ( 6.1)
m =
(6.6)
S
n =
(6.7)
C =
⁄ (6.8)
= (
)
⁄
(6.9)
19
= ( x) (6.10)
(6.5)
- m,
.
- Khi y> -
.
- -
giao k
6.3
-
6.3 -
- cho
m.
-
Nyman,1978)
(
)
7.1:
20
-
-
y.
I.8/ -y.
-
-
-
- c.
-
.
-
21
II/
III, trong
t
II.1.a
22
= -
(II.1)
. N h
- + +
, , ,
= , = , , = =
+ + + + + = 0 (II.2)
( )
= + ∑
(II.3)
Trong
= 1 g
= 1 g
= 1 g
= 1 g
,
=1, =1 =1
= 0 +
=
=
(II.4)
23
=
-
-
(II.5)
=
+
+
+ (
)
+
(II.6)
T
=
+ ∑
(II.7)
Trong
h II.1.f.
=
+
+
-
+
(II.8)
, -
men
24
III/ –
-Y
.
–
–
-
–
-y.
-
( )
-
.
-
.
c
=0
.
III.1/ .
a/
25
- .
- . V
, ,
-y
. V
b
b/ -
–
ch + + (
).
c/ -
H – t khi P
.1: -
III.2/ - .
sau:
,
2 =Ԑ
= 0 [ ].
3: -
4
- 3, nh
vector [ ].
[ ] [ ]
= -
[ ].
26
= + P [ ]
nh [ ].
[ ] [ ]. C khi
vector [ ], [ ] [ ] .
.
Thu t
27
III/
NGANG T
1/ G :
-
-
2/ :
.
-
9.938.000,00 kN/m2
28
0,0004 m4
0,37 m
(m) (kN/m3) (kN/m2) (---) (kN/m3) (---)
0,00 18,73 0,00 96,52 0,0070 108.573 Stiff Clay
III.2.1: T
-
-95,39 kN/m,
b 2 n .
-
Chi
29
Momen qu 0,0343 m4
0,91 m
t
(m) (kN/m3) (kN/m2) (---) (kN/m3) (---)
0,00 18,72 0,59 0,00 0,00 16.286 Sand
4,06 19,54 0,00 95,83 0,0050 271.434 Stiff Clay
III.2.2:
-
t: 429,74 kNm,
-117,62 kN/m,
-
-
30
Mom
0,0300 m4
0,76 m
(m) (kN/m3) (kN/m2) (---) (kN/m3) (---)
0,00 16,00 0,00 25,00 0,0300 0,00 Soft Clay
3,00 19,00 0,61 0,00 0,00 27.155 Sand
III.2.3:
-
-125,01 kN/m,
- B-Pier:
31
1: -Pier.
32
2:
33
3: -Pier.
34
4:
35
d , FB-Pier
COM624P FB-Pier Calpile
1 0,016 0,0198 0,0038 19,19
2 0,0102 0,0123 0,0021 17,07
3 0,0094 0,0112 0,0018 16,07
1 196,62 169,24 -27,38 -16,18
2 467,73 429,74 -37,99 -8,84
3 404 365,32 -38,68 -10,59
1 93,34 95,39 2,05 2,15
2 91,21 117,63 26,42 22,46
3 120 125,01 5,01 4,01
III.2.4: , FP-Pier
-
K c CalPile - .
IV/
- thanh
ngang
,
-
-
36
-
:
- Single piles and pile groups under lateral
loading, Lymon C.Reese and William F.Van Impe.
-
-
-
- -
- -