水工建筑物法、堰槽测流法及末端深度法

1、 AA.1适用于水闸等水工建筑物， 流态为自由堰流或自由孔流，可以依据自由堰流或自由孔流公式进行率定的断面。A.2A.2.1A.2.2A.2.2.1B.1B.2CD0.602 0.083h(B.1)Pheh 0.0012(B.2)ah/P<1.0b b>0.30mc P>0.10md h=0.03-0.75mA.2.3河槽A.2.3.1B.1A.1CD水头 / （ h， m）CD水头 / （h，m）CDh 0.010.6050.05 h 0.060.6280.01 h0.020.6190.06 h 0.070.6290.02 h0.030.6240.07 h 0.080.62

2、90.03 h0.040.6260.08 h 0.090.6300.04 h0.050.6270.1 h0.633A.2.3.2CfCf1CVAC D bh b h PB.2A.2CVACVACV0.001.0000.281.0680.051.0020.301.0790.101.0080.321.0920.151.0190.351.1120.181.0260.381.1450.201.0320.401.1690.221.0400.421.1960.251.0530.451.250A.2.3.4a h/P 3.5,b/h2.0b P 0.06mc b 0.30mdh 0.03mh0.06mA.2

3、.4VA.2.4.152C DC De1K hB.3hA.2.4.2CV11.25Y1B.412.5Y1Y1 0.8CD CSCf mh2 / b h2P ）B.5A.2.4.3hPvhPv52C S11PVB.7hehehK hB.8PVb2mB.9B.1030. 1832hPeCfB.101.078 0.909H ehPeh P K hB.11A.2.4.5VB.3A.3V项目堰的横向坡度1/401/201/10自由出流的0.6250.6200.615有效流量系数 CDe系数的系统± 3.0± 3.2± 2.9不确定度 /(X cD，%)H/PV 1.0水头改

4、正数 /(Kh，m)0.00040.00050.0008应用限制PV/P2.5PV/P 2.5PV/P 2.5PV/PL 2.5PV/PL2.5PV/PL2.5自由出流的0.6300.6250.620有效流量系数 CDe系数的系统± 2.5± 2.8± 2.3不确定度 /(X c，D %)H/PV 1.0水头改正数 /(Kh，m)0.00040.00050.0008应用限制PV/P2.5PV /PLPV/P 2.5PV/P 2.58.2PV/PL8.2PV/P L 4.2注：在淹没条件下的CDe 分别为 0.631，0.629和 0.620。A.2.5A.2.5.

5、1B.4A.4水头范围 /m流量范围 /(10-3 m3/s)喉道宽 /(b ，计算公式非淹没限序号m)3/(h L/h)/ （ m/s)最小最大最小最大10.1520.381h 1.580.030.451.51000.720.250.561h 1.5130.030.603.02500.730.300.679h 1.5210.030.753.54000.740.451.039h 1.5370.030.754.56300.750.601.403h 0.5480.050.7512.58500.760.751.772h 1.5570.060.7525.011000.770.902.147h 1.56

6、50.060.7530.012500.781.002.397h 1.5690.060.8030.015000.791.202.904h 1.5770.060.8035.020000.7101.503.668h 1.5860.060.8045.025000.7111.804.440h 1.5930.080.8080.030000.7122.105.222h 1.5990.080.8095.036000.7132.406.004h 1.6050.080.80100.040000.7A.2.5.2大型巴歇尔槽自由流流量公式及适用范围见表B.5表 A.5大型巴歇尔槽自由流流量公式及适用范围表水头范围

7、/m3自由流流量范围 / （m/s)喉道宽 /(b ，序号流量计算公式非淹没限 /(h L/h)m)1.63最小最大最小最大Q=Ch / （ m/s)13.057.463h 1.60.091.070.168.280.823.668.859h 1.60.090.370.1914.680.834.5710.96h 1.60.091.670.2325.040.846.1014.45h 1.60.091.830.3137.970.857.6217.94h 1.60.091.830.3847.160.869.1421.44h 1.60.091.830.4656.330.8712.1928.43h 1.60.091.830.6074.700.8815.2435.41h 1.60.091.830.7593.040.8A.2.5.3特大型巴歇尔槽自由流流量公式及适用范围见表B.6表 A.6特大型巴歇尔槽自由流流量公式及适用范围表自由流水头范围 /m流量范围 /m3/s喉道宽 /(b ，非淹没限序号流量计算公式m)hL /h1.63最小最大最小最大Q=Ch / （ m/s)11842.106h 1.60.201.8283.21109.80.652231.60.202.243.91186.70