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714
188
11
14
’
’
4.5-3
mm
→
,1.0mm
1.0mm
1.0mm
Yes
No
No
+ or 3
Yes Yes
2
2
3
Yes
No
No
1
3
1
1 t
cd t 1
dc (mm α mm/ 1t
CO2 H2Odc
C
10 mm
ylim
lim 10y C
[ mm ]
C Rylim R 10mm 10 25mm
limy C R 2
dc
limcd y 3 (3) t 1
y
1.
2.
3.
4. 1 2km 10m1 100 200
1 5
5.
6. NDIS3419
1m10m 10
5.4-19
1m
1.0mm
Yes
No
No
+ or 3
Yes Yes
2
2
3
Yes
No
No
1
3
1
NO
YES
NO
YES
W mmcm
±
L=50 mm
100 mm
2
10( )
L
w Ld w w dxL1
w
2
L2w0
dw
mm
φ25mm
6.3-12
SSdL
d
0
1
2
3
0 5 10 15 20
mm
0.67mm/√
0
1
2
3
0 5 10 15 20
mm
0.615mm/√
H H
F
G
A
G
AF
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0
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1
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-1
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50mm 100mm 50mm
-3
-4
-5
a. ( ) 0.8 36.8mm12.2mm 50mm
34mm b. t
mm/12.2 2.23 year
30
10 mm
34-10=24mm t 24mm
2.23 24t
t=116 116-30=86 80
a. b.
1.2 ( P200(4) ) c.
n=0.017 n=0.015
d. 5 0.015 0.092m
-6
Q
(m3/s)
Q 1.2Q
(m) (m)
(m) (m)
A B2.0m
H1.1m 0.999 0.915 0.185 1.115 0.015
B B2.0m
H1.1m 0.999 0.932 0.168 1.139 0.039
C B2.0m
H1.0m 0.723 0.873 0.127 1.043 0.043
D B1.8m
H1.71m 0.723 1.625 0.085 1.802 0.092
E B1.8m
H1.0m 0.723 0.902 0.098 1.081 0.081
-7
-8
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B C D 43 55 (1968 1980 )
5 8 (1993 1996 )
16 28 C L=3 167m
D L=769m
(m) (m) (m) A 2.20 2.10 0.20 B 3.00 1.80 0.20 C 2.65 1.70 0.20 D 2.35 1.45 0.15 E 2.35 1.85 0.15
C Qmax=14.3 m3/s D Qmax= 1.5m3/s
-10
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(JIS A
1152)
25.5
t=60 26=34mm
10mm
-12
a. ( ) t=6026=34mm 10mm
b.
c.
0
5
10
15
20
25
30
35
0 20 40 60
kN/m
m2
N/mm2
-13
-14
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