マニング公式による流速流量表

バイコン台付管１．粗度係数 n=0.013※粗度係数は、参照する基準によって異なりますので必ず確認してください。

MATSUSAKA
KOSAN

松阪興産株式会社
H24.5版

バイコン台付管マニング（ｍａｎｎｉｎｇ）公式による流速流量表

V = 1/n × Ｒ2/3 × I1/2
Q=A×V
ここで，V ： 流速 （m/sec)n ： 粗度係数0.013

R ： 径深 （m) = Ａ/Ｐ
2
A ： 通水断面積 （m )P ： 潤辺 （m）
I ： 水路勾配 （‰) ※1‰（パーミル）＝0.1％
Ｑ ： 流量 （m3/sec)

1‰(=パーミル）

潤辺P
内径D1mm

通水断面積A1000mm

№1
呼び径
内径D（m）
通水断面積 Ａ（m2)
潤辺 Ｐ（m)
径深 Ｒ（m)2/3Ｒ
粗度係数 n勾配Ｉ（‰）
Ｉ1/2100.075.0
50.0
40.0
35.0
30.0
25.0
20.0
18.0
16.0
14.0
12.0
10.0
9.0
8.0
7.0
6.0
5.5
5.0
4.8
4.6
4.5
4.4
4.2
4.0
3.8
3.5
3.4
3.0
2.8
2.6
2.5
2.4
2.2
2.0
1.8
1.6
1.5
1.4
1.2
1.0
0.8
0.6

0.31620.27390.22360.20000.18710.17320.15810.14140.13420.12650.11830.10950.10000.09490.08940.08370.07750.07420.07070.06930.06780.0671
0.06630.06480.0632
0.0616
0.05920.05830.05480.05290.05100.05000.04900.04690.04470.04240.04000.03870.03740.0346
0.03160.02830.0245150
0.15
0.01770.47120.03750.1120
0.013

200
0.20
0.03140.62830.05000.1357
0.013

250
0.25
0.04910.78540.06250.1575
0.013

300
0.30
0.0707
0.94250.07500.1778
0.013

VＱ

V

Ｑ

VＱ

V

Ｑ

2.72522.3601
1.92701.72361.6122
1.49261.3626
1.21871.1562
1.09011.01970.94400.86180.81750.77080.72100.66750.63910.60930.59700.58450.57810.5716
0.55850.54500.53120.50980.50250.47200.45600.43940.43090.42210.40420.38540.3656
0.34470.33370.32240.29850.27250.24370.21100.0481
0.04170.03400.03040.02840.02630.02400.02150.02040.01920.01800.01660.01520.01440.01360.01270.01170.01120.01070.01050.01030.01020.01010.00980.00960.00930.00900.00880.0083
0.00800.00770.00760.00740.00710.00680.00640.00600.00580.00560.00520.00480.00430.00373.30142.85912.33442.08801.95311.80821.65071.47641.40061.32051.2352
1.1436
1.04400.99040.93370.87340.80860.77420.73820.72330.70800.70030.69250.67650.66020.64350.6176
0.60870.57180.55240.53230.52200.51140.4896
0.46680.44290.41760.40430.3906
0.36160.33010.29520.25570.10370.08980.07330.0655
0.06130.05680.05180.04630.04400.04140.03880.03590.03270.03110.02930.02740.02540.02430.0231
0.02270.02220.02200.02170.02120.02070.02020.01940.01910.01790.01730.01670.01630.01600.01530.01460.01390.01310.01270.01220.01130.01030.00920.00803.83093.31772.70892.42292.26642.0983
1.91541.7132
1.6253
1.53231.43341.3270
1.2114
1.1492
1.08351.01350.93830.89840.85660.83930.82160.81260.80350.78510.76610.74670.71670.70630.66350.64100.61770.60570.59340.56820.54170.51390.48450.46910.45320.4196
0.38300.3426
0.29670.18800.16280.13290.11890.11120.10300.09400.08400.07970.07520.07030.06510.05940.05640.05310.04970.04600.0441
0.04200.04110.04030.03980.03940.03850.0376
0.03660.03510.03460.03250.03140.03030.02970.02910.02780.02650.02520.02370.02300.02220.02050.01880.01680.01454.32613.74653.05902.73602.55932.36952.16301.9346
1.83541.7304
1.6186
1.49861.36801.29781.2236
1.14451.05961.01450.96730.94780.92780.91770.90740.88650.86520.84330.80930.79760.74930.72380.69750.68400.67010.6416
0.61180.58040.54720.52980.51180.47390.4326
0.38690.33500.30570.26480.21620.19330.18090.16740.15280.13670.12970.12230.11440.10590.0966
0.09170.08640.08080.07480.07170.06830.06690.06550.06480.0641
0.0626
0.06110.0596
0.0572
0.05630.05290.05110.04930.04830.04730.04530.04320.04100.0386
0.03740.03610.03340.03050.02730.0236

№2
呼び径
内径D（m）
通水断面積 Ａ（m2)
潤辺 Ｐ（m)
径深 Ｒ（m)2/3
Ｒ粗度係数 n
勾配Ｉ（‰）
Ｉ1/2
100.0
75.0
50.0
40.0
35.0
30.0
25.0
20.0
18.0
16.0
14.0
12.0
10.0
9.0
8.0
7.0
6.0
5.5
5.0
4.8
4.6
4.5
4.4
4.2
4.0
3.8
3.5
3.4
3.0
2.8
2.6
2.5
2.4
2.2
2.0
1.8
1.6
1.5
1.4
1.2
1.0
0.8
0.6

0.31620.27390.22360.20000.18710.17320.15810.14140.13420.12650.11830.10950.10000.09490.08940.08370.07750.07420.07070.06930.06780.0671
0.06630.06480.0632
0.0616
0.05920.05830.05480.05290.05100.05000.04900.04690.04470.04240.04000.03870.03740.0346
0.03160.02830.0245350
0.35
0.0962
1.09960.08750.1971
0.013

400
0.40
0.12571.25660.10000.2154
0.013

450
0.45
0.15901.41370.11250.2330
0.013

500
0.50
0.19631.57080.12500.2500
0.013

VＱ

V

Ｑ

V

Ｑ

VＱ

4.79434.15203.39013.03222.83632.62592.39712.14402.03401.91771.79381.66081.51611.43831.35601.2684
1.1743
1.1243
1.07201.0503
1.0282
1.01701.0056
0.98250.95880.93450.89690.88400.83040.80220.77300.75800.74270.71110.67800.64320.6064
0.58710.56720.52510.47940.42880.37130.46120.39940.32610.29170.27280.25260.23060.2062
0.19560.18450.17250.15970.14580.13830.13040.12200.11290.10810.10310.10100.09890.09780.0967
0.09450.09220.08990.08620.08500.07980.07710.07430.07290.07140.06840.0652
0.06180.05830.05640.05450.05050.0461
0.04120.03575.24074.53853.70573.31453.10042.87042.62032.34372.22342.09621.96081.8154
1.6572
1.5722
1.4822
1.38651.28371.22901.17181.1481
1.12401.11171.0993
1.07401.0481
1.02160.98040.96630.90770.87690.84500.82860.81180.77730.74110.7031
0.66290.64180.62000.57400.52400.46870.40590.65850.57030.4656
0.41650.38960.36070.32920.29450.27940.26340.24640.22810.20820.19750.18620.17420.16130.15440.14720.14420.14120.13970.13810.13490.13170.12830.12320.12140.11400.11010.10610.10410.10200.0976
0.09310.08830.08330.08060.07790.0721
0.06580.05880.05105.66884.90934.00843.58523.3537
3.10492.83442.53512.40502.26752.12101.96371.79261.70061.6033
1.49981.38851.3294
1.26751.24191.21581.2025
1.18901.16171.13371.10501.06051.04520.98180.94850.91400.89630.87820.84080.80160.76050.71700.69420.67070.62090.56680.50700.43910.90150.78070.63750.5702
0.53330.49380.45070.4031
0.38240.3606
0.33730.31230.28510.27040.25490.23850.22080.21140.20150.19750.19330.19120.18910.18470.18030.17570.1686
0.16620.15610.15080.14530.14250.13960.13370.12740.12090.11400.11040.1066
0.09870.09010.0806
0.06986.08135.26654.30013.8461
3.59773.33083.04062.71962.58002.43252.27542.1066
1.92301.82431.72001.60891.48961.42611.35981.33231.30421.29001.2756
1.2462
1.21621.18541.13771.1213
1.05331.01750.98050.96150.94210.90200.86000.81580.76920.74480.71950.66610.6081
0.54390.47101.19401.03400.84430.75510.70640.65400.59700.53390.50650.4776
0.44670.41360.37750.35820.33770.31590.29240.28000.26690.26150.25600.25320.25040.24460.23880.23270.22330.22010.20680.19970.19250.18870.18490.17710.16880.16010.15100.14620.14120.13070.11940.1067
0.0924

№3
呼び径
内径D（m）
通水断面積 Ａ（m2)
潤辺 Ｐ（m)
径深 Ｒ（m)2/3
Ｒ
粗度係数 n
勾配Ｉ（‰）
Ｉ1/2
100.0
75.0
50.0
40.0
35.0
30.0
25.0
20.0
18.0
16.0
14.0
12.0
10.0
9.08.0
7.0
6.0
5.5
5.0
4.8
4.6
4.5
4.4
4.2
4.0
3.8
3.5
3.4
3.0
2.8
2.6
2.5
2.4
2.2
2.0
1.8
1.6
1.5
1.4
1.2
1.0
0.8
0.6

0.31620.27390.22360.20000.18710.17320.15810.14140.13420.12650.11830.10950.10000.09490.08940.08370.07750.07420.07070.06930.06780.0671
0.06630.06480.0632
0.0616
0.05920.05830.05480.05290.05100.05000.04900.04690.04470.04240.04000.03870.03740.0346
0.03160.02830.0245600
0.60
0.28271.88500.15000.2823
0.013

700
0.70
0.38482.19910.17500.3129
0.013

800
0.80
0.50272.51330.20000.3420
0.013

900
0.90
0.63622.82740.22500.3699
0.013

VＱ

V

Ｑ

VＱ

V

Ｑ

6.8672
5.94724.85584.34324.06273.76133.4336
3.07112.91352.74692.56942.37882.17162.0601
1.9423
1.81691.68211.61051.53551.50451.47281.45671.4404
1.40731.3734
1.33861.28471.2662
1.1894
1.1491
1.10731.08581.06381.01850.97110.92130.8686
0.84100.81250.75220.68670.61420.53191.9416
1.68151.37291.22801.14871.06340.97080.86830.82370.7766
0.72640.67250.61400.58240.54910.51370.47560.45530.43410.42530.41640.41180.40720.39790.38830.37840.36320.35800.33620.32490.31300.30700.30070.28790.27450.26040.24550.23770.2297
0.2126
0.19410.17360.15037.61056.59095.38144.81334.50244.16843.80523.4035
3.22883.04422.84762.63632.40662.28312.15252.0135
1.8641
1.78481.70171.6673
1.6322
1.6144
1.5963
1.5596
1.52211.48351.42381.4033
1.31811.27341.22711.2033
1.17901.12881.0762
1.02100.9626
0.93200.90040.8336
0.76100.68070.58952.92882.53642.07101.8523
1.73271.60411.46441.30981.2425
1.17151.09581.01450.92610.87860.82830.77480.71730.68680.65480.6416
0.62810.62120.61430.60020.58570.57090.54790.54000.50720.49000.4722
0.46300.45370.43440.4141
0.39290.37040.3586
0.34650.32080.29280.26190.22688.31917.20455.88245.26144.92164.5565
4.15953.7204
3.52943.3276
3.11272.88182.63072.49572.35292.20102.0377
1.95101.8602
1.8226
1.7842
1.76471.74501.70491.66381.62161.5563
1.53391.44091.39201.34141.3153
1.28871.23391.17641.1161
1.0522
1.01880.98430.91130.83190.74400.64434.18163.62132.95682.64462.47382.29032.09071.87001.77401.67261.56461.44851.32231.2544
1.1826
1.10631.02420.9806
0.93500.91610.89680.88700.87710.85690.83630.8151
0.78220.77100.72420.6996
0.6742
0.66110.64770.62020.59130.56100.52880.51210.49470.45800.41810.37390.32388.9986
7.79306.36305.69125.32364.92874.49934.02433.81783.59943.36693.11722.84562.69962.54522.38082.20422.11032.01211.9715
1.92991.90891.8875
1.84411.79971.75411.6834
1.6592
1.55861.50571.45091.42281.39401.33471.27261.2072
1.1382
1.1021
1.06470.98570.89980.80480.69705.7246
4.95764.04793.62053.38673.13552.86232.56012.42872.28982.14191.98301.8102
1.7174
1.61911.51451.4022
1.34251.28001.2542
1.2277
1.21431.20071.17311.14491.11591.07091.05550.99150.95780.92300.90510.88680.84900.80950.76790.72400.70110.67730.62700.57240.51190.4434

№4
呼び径
内径D（m）
通水断面積 Ａ（m2)
潤辺 Ｐ（m)
径深 Ｒ（m)2/3
Ｒ
粗度係数 n
勾配Ｉ（‰）
Ｉ1/2
100.0
75.0
50.0
40.0
35.0
30.0
25.0
20.0
18.0
16.0
14.0
12.0
10.0
9.0
8.0
7.06.0
5.5
5.0
4.8
4.6
4.5
4.4
4.2
4.0
3.8
3.5
3.4
3.0
2.8
2.6
2.5
2.4
2.2
2.0
1.8
1.6
1.5
1.4
1.2
1.0
0.8
0.6

0.31620.27390.22360.20000.18710.17320.15810.14140.13420.12650.11830.10950.10000.09490.08940.08370.07750.07420.07070.06930.06780.0671
0.06630.06480.0632
0.0616
0.05920.05830.05480.05290.05100.05000.04900.04690.04470.04240.04000.03870.03740.0346
0.03160.02830.02451000
1.0
0.78543.14160.25000.3969
0.013

1100
1.1
0.95033.45580.27500.4229
0.013

1200
1.2
1.13103.76990.30000.4481
0.013

VＱ

V

Ｑ

V

Ｑ

9.65348.36016.82606.10535.71105.28744.82674.3171
4.0956
3.86133.61193.34403.05262.89602.73042.55402.36462.26392.1585
2.11492.07042.04782.02491.97831.9306
1.88181.80591.78001.67201.6153
1.5565
1.5263
1.49551.43181.3652
1.29511.22101.1823
1.1422
1.05740.96530.86340.74777.58176.56605.36114.79504.48544.15273.79083.3906
3.21663.03262.83672.62632.39752.27452.14442.00591.85711.77801.6952
1.66101.62601.60831.5903
1.55371.5162
1.47791.4183
1.39801.31311.2686
1.2224
1.1987
1.1745
1.12451.0722
1.0171
0.95890.92850.89700.83040.75810.67810.5872

10.28678.90857.27386.50596.0857
5.6342
5.14334.60034.36434.11473.84893.5634
3.25293.08602.90952.72162.51972.41242.30012.25372.20622.18212.15772.10812.05732.0052
1.9244
1.8967
1.78171.72131.65861.6264
1.59361.52571.45471.38011.30111.25981.2171
1.12681.02860.92000.79689.77578.46606.9125
6.18275.78345.35434.88784.37184.14753.91033.65773.38643.09132.93272.76492.58642.39452.29252.18582.14172.09662.07372.05052.0033
1.95511.9056
1.82881.8024
1.6932
1.63581.5762
1.54561.5144
1.44991.3824
1.3115
1.2364
1.1972
1.15661.07080.97750.87430.757210.90119.4406
7.7082
6.89446.44915.97075.45054.87514.62494.36044.07883.7762
3.4472
3.27033.08332.88412.67022.55652.43752.38832.33802.31242.28662.23402.18022.12502.03942.01001.88811.82411.75771.7236
1.68871.61681.54161.46251.37881.33511.28981.19411.09010.97500.844312.3288
10.67708.71777.79737.29376.7527
6.16435.51365.23064.93144.61304.27073.8986
3.69863.4871
3.26183.01992.89132.75672.70112.64422.61522.58602.52652.46572.40332.30652.27322.13532.06301.98791.94931.90981.82851.74351.65401.55931.50991.45871.35041.23281.1026
0.9548VＱ