298
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0
100
200
300
400
500
600
700
800
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
0
1000
2000
3000
4000
5000
6000
7000
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
0
10
20
30
40
50
60
70
80
90
100
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69
1229 40
0
500
1000
1500
2000
2500
3000
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69
1229 40
Calm2.9%
2.1m/s1,344
Calm2.0%
2.4m/s1,344
Calm 0.4m/s
0
1000
2000
3000
4000
5000
6000
A A-B B B-C C C-D D E F G
0.5LB
Hw
0.5LB
2LB 5LB
LB =min HB,HW
LB HB HW
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
0.0
0.5
1.0
1.5
2.0
2.5
0 1000 2000 3000 4000 5000 6000
Rd10
-5
X(m)
))2 KK
0
0.5
1
1.5
2
Rd10
-5
0
0.5
1
1.5
2
Rd10
-5
0
0.5
1
1.5
2
Rd10
-5
0
0.5
1
1.5
2
Rd10
-5
0
0.5
1
1.5
2
Rd10
-5
0
0.5
1
1.5
2
Rd10
-5
0
0.5
1
1.5
2
Rd10
-5
0
0.5
1
1.5
2
Rd10
-5
)) KK
××
××
8
8.3
8.3.1
10 90% (dB)
1
0.4m3 82 2 0.7m3 82 3 1.6m3 82 4 3.4m3 82 5 10m3 82 6
0.4m3 77
7 0.7m3 77 8 1.6m3 81 9 96
10 40t 72 11 (CD 100 150t 82 12 79 13 3 67 14
10t 74 15 25t 74 16 50t 74 17 200t 79 18
70t 73 19 100t 73 20 150t 73 21 300t 73 22 450t 73 23 2.9t 150m 73 24 8t 85 25 78 26 2.9t 150m 78 27 78 28 20t 76 29 0.7m3 80 30 63 31 66
()
( 12dB )
93.4 B(50 ) 89.1 B(33 )
音源
計画地
仮囲いH=3.0ｍ
予測地点H=1.2ｍ
GL
音源
計画地
緩衝緑地1.5ｍ
仮囲いH=3.0ｍ
予測地点H=1.2ｍ
GL
125 250 500 1000 2000 4000
0.01 0.01 0.02 0.02 0.02 0.03
0.25 0.63 0.93 0.94 0.87 0.91
63 125 250 500 1000 2000 4000 8000
33 37 42 50 58 66 69 67
10 log10N 13 1 N Ld 5 8 N 0 N 1
5 8 |N| -0.36 N 0 0 N -0.36
(a) (b)
N
Ld(d
B)
(SMW)
45
50
55
60
65
70
75
0 10 20 30 40 50 60 70 80 90 100
45
50
55
60
65
70
75
0 10 20 30 40 50 60 70 80 90 100
45
50
55
60
65
70
75
0 10 20 30 40 50 60 70 80 90 100
8
8.3
8.3.2
(m)
(dB) 1
0.4m3 5 52 2 0.7m3 5 52 3 1.6m3 5 52 4 3.4m3 5 52 5 10m3 5 52 6
0.4m3 5 72
7 0.7m3 5 72 8 1.6m3 5 72 9 10 67
10 40t 5 52 11 (CD 100 150t 5 63 12 5 56 13 3 13 45 14
10t 5 52 15 25t 5 52 16 50t 5 52 17 200t 5 52 18
70t 5 52 19 100t 5 52 20 150t 5 52 21 300t 5 52 22 450t 5 52 23 2.9t 150m 5 52 24 8t 7 59 25 5 62 26 2.9t 150m 5 75 27 7 53 28 20t 7 48 29 0.7m3 7 58 30 7 43 31 5 60
()
77.1 B(55.56 ) 82.3 B(33 )
8.3.2-4
35
40
45
50
55
60
65
0 10 20 30 40 50 60 70 80 90 100
35
40
45
50
55
60
65
0 10 20 30 40 50 60 70 80 90 100
dB
L10 dB
2
3
4
35
40
45
50
55
60
65
0 10 20 30 40 50 60 70 80 90 100
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