Soil Mechanics Lecture_Permeability
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Transcript of Soil Mechanics Lecture_Permeability
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B 302C H
CE / EE/ E
D . A FF E C
FA 2013
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D . A B 302 F 2013
E EAB
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D . A B 302 F 2013
( ) ( ).
H
D
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D . A B 302 F 2013
o
D
o E E E
o G
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D . A B 302 F 2013
D ( ):o .o = A o C .
( ):o .o = A o C , , ?
A A
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D . A B 302 F 2013
>
( > )
B > A
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D . A B 302 F 2013
C
F
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D . A B 302 F 2013
H A D :
o = A o / = A /o ( / ) /
.
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D . A B 302 F 2013
H C
:
.
T
La
Ak
h
hln
f
o =
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D . A B 302 F 2013
= A = A = (1)
= (2)
=
=
TLa
Ak
h
hln
f
o=
dt
a.dh
L
h.k .A
L
h.k .A
dt
a.dh
hdh.
Ak aL
=
f
o
h
h
T
0 h
dh
Ak
aLdt
[ ] f o
h
hhlnAk
aLT =
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D . A B 302 F 2013
D :
o .
o
.
o C .
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D . A B 302 F 2013
C :
A
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D . A B 302 F 2013
C :
A
A
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D . A B 302 F 2013
A
(G ) A :
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D . A B 302 F 2013
A
21
22
12 ) / ln(
hh
r r Q
k =
(1)
1
(2)1
D
1
1 = H 1
2 = H 2
(G ) A :
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D . A B 302 F 2013
A
A
C (A ) A :
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D . A B 302 F 2013
A
C (A ) A :
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D . A B 302 F 2013
A
C (A ) A :
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D . A B 302 F 2013
A
(1)
1
(2)1
1
1 = H 1
2 = H 2 12
12 ) / ln(
2 hh
r r
D
Qk
=
C (A ) A :
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D . A B 302 F 2013
.
.
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D . A B 302 F 2013
C o (1 0)
= 1 2
D10 =
210cDk(cm/sec) =
7825.03210 )e1(
eD4622.2sec) / cm(k +
=
o ( 00 )
=
D10 =
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D . A B 302 F 2013
F :
C =
=
+
=
e1
eCk
n
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D . A B 302 F 2013
+
=
1.11
(1.1)
C0.302x10
n7
+=
e1
eCk
n
+
=
0.91
(0.9)C0.120x10
n7
:E = 0.75.
( / )
1.1 0.302 1070.9 0.12 10 7
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D . A B 302 F 2013
+
+=
9.01
)9.0(
1.11)1.1(
10x120.0
10x302.0n
n
7
7
098.5n =
:E = 0.75.
( / )
1.1 0.302 1070.9 0.12 10 7
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D . A B 302 F 2013
:E = 0.75.
( / )
1.1 0.302 1070.9 0.12 10 7
710x390.0C =
+
=
1.11
)1.1(C10302.0
098.57 x
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D . A B 302 F 2013
( / )
100 10 1G101 10 2C
102
103
F 103 10 4
104 10 5
