水文水利计算课程设计
水位后,再加开非常泄洪道200 m3/s。 4.2防洪高水位的计算
用5%设计洪水过程线,除下泄安全流量外,其余蓄在水库,则总蓄水量加在防洪限制水位上,则可得防洪高水位。
此处防洪高水位受下游安全泄量控制,安全泄量为16 m3/s,不超过下游设计标准的洪水,从防洪限制水位开始,根据水库下游防洪要求,来多少泄多少,但不超过下游安全流量。由计算可得防洪高水位为:86.95m,对应库容:158.26?106 m3,起调水位对应库容:82.09?106 m3。则防洪库容:76.17?106 m3。
表格 13:防洪高水位的入库下泄水位变化
时段h 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00
5.0% 14.85 17.33 17.33 19.80 32.43 37.13 42.99 55.05 56.93 75.42 84.15 98.04 128.96 173.46 190.19 196.08 197.98 204.47 214.21 227.19 239.07 242.12 252.64 273.01 393.37 446.59 471.91 604.98 687.42
下泄流量m3/s 14.85 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00
12
库容变化 106m3 0.00 1.33 1.33 3.80 16.43 21.13 26.99 39.05 40.93 59.42 68.15 82.04 112.96 157.46 174.19 180.08 181.98 188.47 198.21 211.19 223.07 226.12 236.64 257.01 377.37 430.59 455.91 588.98 671.42
库容 106m3 82.09 82.09 82.10 82.11 82.17 82.25 82.34 82.48 82.63 82.85 83.09 83.39 83.79 84.36 84.99 85.64 86.29 86.97 87.68 88.44 89.25 90.06 90.91 91.84 93.20 94.75 96.39 98.51 100.92
水位 m 78.36 78.36 78.36 78.36 78.37 78.38 78.39 78.41 78.43 78.46 78.50 78.54 78.59 78.67 78.76 78.84 78.93 79.02 79.12 79.22 79.33 79.43 79.55 79.67 79.84 80.04 80.25 80.50 80.78
水文水利计算课程设计
30.00 797.77 31.00 828.28 32.00 877.61 33.00 910.07 34.00 998.63 35.00 1055.17 36.00 758.17 37.00 672.49 38.00 624.05 39.00 604.19 40.00 512.79 41.00 456.30 42.00 425.17 43.00 330.77 44.00 262.48 45.00 238.71 46.00 215.69 47.00 208.90 48.00 208.90 49.00 202.87 50.00 199.85 51.00 198.34 52.00 196.08 53.00 190.80 54.00 190.05 55.00 184.77 56.00 181.00 57.00 177.23 58.00 177.23 59.00 171.19 60.00 168.93 61.00 159.88 62.00 154.60 63.00 144.80 64.00 135.75 65.00 131.18 66.00 123.75 67.00 121.42 68.00 121.28 69.00 118.80 70.00 116.89 71.00
116.33
16.00 781.77 16.00 812.28 16.00 861.61 16.00 894.07 16.00 982.63 16.00 1039.17 16.00 742.17 16.00 656.49 16.00 608.05 16.00 588.19 16.00 496.79 16.00 440.30 16.00 409.17 16.00 314.77 16.00 246.48 16.00 222.71 16.00 199.69 16.00 192.90 16.00 192.90 16.00 186.87 16.00 183.85 16.00 182.34 16.00 180.08 16.00 174.80 16.00 174.05 16.00 168.77 16.00 165.00 16.00 161.23 16.00 161.23 16.00 155.19 16.00 152.93 16.00 143.88 16.00 138.60 16.00 128.80 16.00 119.75 16.00 115.18 16.00 107.75 16.00 105.42 16.00 105.28 16.00 102.80 16.00 100.89 16.00
100.33
13
103.74 81.11 106.66 81.46 109.76 81.82 112.98 82.20 116.52 82.60 120.26 83.03 122.93 83.33 125.30 83.59 127.49 83.84 129.60 84.06 131.39 84.25 132.98 84.42 134.45 84.57 135.58 84.69 136.47 84.78 137.27 84.86 137.99 84.94 138.69 85.01 139.38 85.08 140.05 85.15 140.71 85.22 141.37 85.29 142.02 85.36 142.65 85.42 143.28 85.49 143.88 85.55 144.48 85.61 145.06 85.67 145.64 85.73 146.20 85.79 146.75 85.84 147.26 85.90 147.76 85.95 148.23 85.99 148.66 86.04 149.07 86.08 149.46 86.11 149.84 86.15 150.22 86.19 150.59 86.22 150.95 86.26 151.31
86.29
水文水利计算课程设计
72.00 73.00 74.00 75.00 76.00 77.00 78.00 79.00 80.00 81.00 82.00 83.00 84.00 85.00 86.00 87.00 88.00 89.00 90.00 91.00 92.00 93.00 94.00 95.00 96.00 97.00 98.00 99.00 100.00
113.85 109.35 108.90 106.43 106.43 101.48 101.48 98.04 96.53 91.58 89.10 88.99 88.99 86.63 84.15 81.68 81.68 79.20 77.68 76.73 74.25 73.15 69.38 64.10 61.84 59.58 49.02 41.48 32.43
16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00
97.85 93.35 92.90 90.43 90.43 85.48 85.48 82.04 80.53 75.58 73.10 72.99 72.99 70.63 68.15 65.68 65.68 63.20 61.68 60.73 58.25 57.15 53.38 48.10 45.84 43.58 33.02 25.48 16.43
151.67 152.00 152.34 152.66 152.99 153.30 153.60 153.90 154.19 154.46 154.72 154.99 155.25 155.50 155.75 155.99 156.22 156.45 156.67 156.89 157.10 157.31 157.50 157.67 157.84 157.99 158.11 158.20 158.26
86.33 86.36 86.39 86.42 86.46 86.48 86.51 86.54 86.57 86.60 86.62 86.64 86.67 86.69 86.72 86.74 86.76 86.78 86.80 86.82 86.84 86.86 86.88 86.90 86.91 86.93 86.94 86.94 86.95
图表 5:防洪高水位入库、下泄流量及水位
1200.001000.00流量(Q)800.00600.00400.00200.000.000.0020.0040.0060.00时段(h)
14
80.00100.00120.00水文水利计算课程设计
4.3设计洪水位的确定
用1%设计洪水过程线,从防洪限制水位开始,先按安全流量下泄,其余蓄在水库里,待蓄至防洪高水位后,即打开溢洪道闸门和泄洪洞闸门,自由泄流,通过调洪演算,得设计洪水位、拦洪库容和相应最大下泄流量。
根据水量平衡,试算每个时段末下泄流量q2,得到库容V2,再通过库容流量关系对q2进行检验,若一致则保留,不一致继续试算。
由计算可得设计洪水位为:87.17m,对应库容:160.71?106 m3,起调水位对应库容:82.088?106 m3。则对应库容:78.62?106 m3。
表格 14:设计洪水入库下泄及水位
时段 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0
1.0% 9.9 11.6 11.6 13.2 24.8 38.0 42.9 56.2 56.8 72.8 99.7 129.6 170.5 209.4 239.3 258.8 280.7
下泄流量 9.9 11.6 11.6 13.2 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0
15
库容 82.1 82.1 82.1 82.1 82.1 82.2 82.3 82.4 82.6 82.8 83.1 83.5 84.1 84.8 85.6 86.4 87.4
水位 78.4 78.4 78.4 78.4 78.4 78.4 78.4 78.4 78.4 78.5 78.5 78.6 78.6 78.7 78.8 79.0 79.1
水文水利计算课程设计
18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0 26.0 27.0 28.0 29.0 30.0 31.0 32.0 33.0 34.0 35.0 36.0 37.0 38.0 39.0 40.0 40.1 40.2 40.3 40.4 40.5 40.6 40.7 40.8 40.9 41.0 42.0 42.0 42.1 42.2 42.3 42.4 42.5 42.6 42.7 42.8 42.9
310.5 16.0 316.1 16.0 325.3 16.0 344.1 16.0 415.0 16.0 461.0 16.0 517.7 16.0 597.4 16.0 678.3 16.0 716.7 16.0 918.8 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 968.5 16.0 903.2 16.0 834.7 16.0 825.6 16.0 815.4 16.0 804.4 16.0 792.7 16.0 780.7 362.0 768.7 362.0 756.8 362.0 745.4 362.0 734.6 362.0 724.9 362.0 645.7 363.0 645.7 363.0 626.0 363.0 594.5 363.0 554.6 363.0 509.4 363.0 462.0 363.0 425.8 363.0 363.8 363.0 339.2 363.0 315.3
363.0
16
88.4 79.2 89.5 79.4 90.6 79.5 91.8 79.7 93.3 79.9 94.9 80.1 96.7 80.3 98.8 80.5 101.1 80.8 103.7 81.1 106.9 81.5 110.6 81.9 114.9 82.4 119.4 82.9 124.1 83.5 129.1 84.0 134.1 84.5 139.8 85.1 143.9 85.6 147.5 85.9 150.9 86.3 154.1 86.6 157.1 86.8 157.4 86.9 157.7 86.9 157.9 86.9 158.2 86.9 158.4 87.0 158.6 87.0 158.7 87.0 158.9 87.0 159.0 87.0 159.1 87.0 160.3 87.1 160.3 87.1 160.4 87.1 160.5 87.2 160.6 87.2 160.6 87.2 160.7 87.2 160.7 87.2 160.7 87.2 160.7 87.2 160.7
87.2
1044.0 1211.6 1257.9 1332.8 1382.1 1425.5 1593.1 1151.5 1021.3