吉林大学精品课>>专门水文地质学>>教材>>水文与水资源工程教学实习指导
附表5 三角堰堰高(h)-流量(Q)关系
堰高
堰高h
流量Q
备 注
级别
cm
L·s-1
L/min
m3·h-1
m3·d-1
堰高h/cm
系数c
1
1.0
0.0142
0.852
0.051
1.227
<5.0
0.0142
1
1.5
0.0391
2.348
0.141
3.381
5.1~10.0
0.0141
1
2.0
0.0803
4.820
0.289
6.940
10.1~15.0
0.0140
1
2.2
0.1019
6.116
0.367
8.808
15.1~20.0
0.0139
1
2.4
0.1267
7.603
0.456
10.948
20.1~25.0
0.0138
1
2.6
0.1548
9.287
0.557
13.373
25.1~30.0
0.0137
1
2.8
0.1863
11.177
0.671
16.095
1
3.0
0.2214
13.281
0.797
19.125
公式
Q=ch5/2
1
3.2
0.2601
15.607
0.936
22.474
1
3.4
0.3027
18.161
1.090
26.152
1
3.6
0.3492
20.951
1.257
30.169
1
3.8
0.3997
23.983
1.439
34.535
1
4.0
0.4544
27.264
1.636
39.260
1
4.1
0.4833
29.000
1.740
41.760
1
4.2
0.5133
30.801
1.848
44.353
1
4.3
0.5445
32.667
1.960
47.041
2
5.1
0.8282
49.69
3.0
71.558
2
5.5
1.0003
60.02
3.6
86.425
2
6.0
1.2434
74.60
4.5
107.426
2
6.5
1.5188
91.13
5.5
131.225
2
7.0
1.8279
109.68
6.6
157.935
2
7.5
2.1721
130.32
7.8
187.666
2
8.0
2.5524
153.14
9.2
220.525
2
8.5
2.9701
178.20
10.7
256.614
2
9.0
3.4263
205.58
12.3
296.032
2
9.5
3.9222
235.33
14.1
338.877
2
10.0
4.4588
267.53
16.1
385.241
3
10.1
4.5387
272.32
16.3
392.144
3
10.5
5.0015
300.09
18.0
432.131
3
11.0
5.6184
337.10
20.2
485.427
3
11.5
6.2787
376.72
22.6
542.483
3
12.0
6.9836
419.02
25.1
603.386
3
12.5
7.7340
464.04
27.8
668.216
3
13.0
8.5307
511.84
30.7
737.055
3
13.5
9.3748
562.49
33.7
809.984
3
14.0
10.2671
616.03
37.0
887.078
3
14.5
11.2085
672.51
40.4
968.416
3
15.0
12.1999
731.99
43.9
1054.071
4
15.1
12.3156
738.94
44.3
1064.072
4
15.5
13.1475
788.85
47.3
1135.946
4
16.0
14.2336
854.02
51.2
1229.783
4
16.5
15.3718
922.31
55.3
1328.123
4
17.0
16.5629
993.78
59.6
1431.037
4
17.5
17.8078
1068.47
64.1
1538.593
4
18.0
19.1072
1146.43
68.8
1650.858
4
18.5
20.4618
1227.71
73.7
1767.901
4
19.0
21.8725
1312.35
78.7
1889.786
4
19.5
23.3400
1400.40
84.0
2016.578
4
20.0
24.8651
1491.90
89.5
2148.343
5
20.1
24.9959
1499.76
90.0
2159.648
5
20.5
26.2581
1575.49
94.5
2268.702
5
21.0
27.8886
1673.32
100.4
2409.578
5
21.5
29.5784
1774.71
106.5
2555.577
5
22.0
31.3282
1879.69
112.8
2706.759
5
22.5
33.1387
1988.32
119.3
2863.183
5
23.0
35.0105
2100.63
126.0
3024.910
5
23.5
36.9444
2216.66
133.0
3191.997
5
24.0
38.9410
2336.46
140.2
3364.503
5
24.5
41.0010
2460.06
147.6
3542.485
5
25.0
43.1250
2587.50
155.3
3726.000
6
25.1
43.2419
2594.51
155.7
3736.101
6
25.5
44.9853
2699.12
161.9
3886.733
6
26.0
47.2230
2833.38
170.0
4080.071
6
26.5
49.5262
2971.57
178.3
4279.066
6
27.0
51.8955
3113.73
186.8
4483.774
6
27.5
54.3316
3259.89
195.6
4694.248
6
28.0
56.8350
3410.10
204.6
4910.542
6
28.5
59.4063
3564.38
213.9
5132.707
6
29.0
62.0463
3722.78
223.4
5360.796
6
29.5
64.7553
3885.32
233.1
5594.862
6
30.0
67.5342
4052.05
243.1
5834.954
