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1、-巴歇尔槽构造如上图。按巴歇尔槽构造尺寸表将图中的，数据填入。注意事项 l 巴歇尔槽的中心线要与渠道的中心线重合,使水流进入巴歇尔槽不出现偏流。 l 巴歇尔槽通水后，水的流态要自由流。巴歇尔槽的淹没度要小于规定的临界淹没度。 l 巴歇尔槽的上游应有大于5倍渠道宽的平直段，使水流能平稳进入巴歇尔槽。即没有左右偏流，也没有渠道坡降形成的冲力。（参见下图） l 巴歇尔槽安装在渠道上要牢固。与渠道侧壁、渠底连结要紧密，不能漏水。使水流全部流经巴歇尔槽的计量部位。巴歇尔槽的计量部位是槽内喉道段。 图 自由流与淹没流 巴歇尔槽构造尺寸 单位：米类别序号喉道段收缩段扩散段墙高bLNB1L1LaB2L2KD
2、小 型10.0250.0760.0290.1670.3560.2370.0930.2030.0190.2320.0510.1140.0430.2140.4060.2710.1350.2540.0220.2630.0760.1520.0570.2590.4570.3050.1780.3050.0250.4640.1520.3050.1140.4000.6100.4070.3940.6100.0760.6150.2280.3050.1140.5750.8640.5760.3810.4570.0760.77标准型60.250.600.230.781.3250.8830.550.920.080.807
3、0.300.600.230.841.3500.9020.600.920.080.9580.450.600.231.021.4250.9480.750.920.080.9590.600.600.231.201.5001.00.900.920.080.95100.750.600.231.381.5751.0531.050.920.080.95110.900.600.231.561.6501.0991.200.920.080.95121.000.600.231.681.7051.1391.300.920.081.0131.200.600.231.921.8001.2031.500.920.081.0
4、141.500.600.232.281.951.3031.800.920.081.0151.800.600.232.642.101.3992.100.920.081.0162.100.600.233.002.251.5042.400.920.081.0172.400.600.233.362.401.6042.700.920.081.0大型183.050.910.3434.764.271.7943.681.830.1521.22193.660.910.3435.614.881.9914.472.440.1521.52204.571.220.4577.627.622.2955.593.050.22
5、91.83216.101.830.6869.147.622.7857.323.660.3052.13227.621.830.68610.677.623.3838.943.960.3052.13239.141.830.68612.317.933.78510.574.270.3052.132412.191.830.68615.488.234.78513.824.880.3052.132515.241.830.68618.538.235.77617.276.100.3052.13巴歇尔槽参数类别序号喉道宽度b(m)流量公式Q=Chan(L/S)水位范围h(m)流量范围Q(L/S)临界淹没度%最小最大
6、最小最大小型10.02560.4ha1.550.0150.210.095.40.520.051120.7ha1.550.0150.240.1813.20.530.076177.1ha1.550.030.330.7732.10.540.152381.2ha1.540.030.451.50111.00.650.228535.4ha1.530.030.602.52510.6标准型60.25561ha1.5130.030.603.02500.670.30679ha1.5210.030.753.54000.680.451038ha1.5370.030.754.56300.690.601403ha1.54
7、80.050.7512.58500.6100.751772ha1.5570.060.7525.011000.6110.902147ha1.5650.060.7530.012500.6121.002397ha1.5690.060.8030.015000.7131.202904ha1.5770.060.8035.020000.7141.503668ha1.5860.060.8045.025000.7151.804440ha1.5930.080.8080.030000.7162.105222ha1.5990.080.8095.036000.7172.406004ha1.6050.080.80100.
8、040000.7大型183.057463ha1.60.091.07160.082800.8193.668859ha1.60.091.37190.0146800.8204.5710960ha1.60.091.67230.0250400.8216.1014450ha1.60.091.83310.0379700.8227.6217940ha1.60.091.83380.0471600.8239.1421440ha1.60.091.83460.0563300.82412.1928430ha1.60.091.83600.0747000.82515.2435410ha1.60.091.83750.0930
9、400.8巴歇尔槽的水位-流量关系如“巴歇尔槽参数”表所示。喉道宽“b”为0.051，0.076，0.152，0.228，0.3米巴歇尔槽水位流量对应表如下：0.051米喉道巴歇尔槽水位流量对应表 水位单位：米 流量单位：升/秒水位0.0000.0100.0200.0300.0400.0500.0600.0700.0800.090流量0.00000.09590.28070.52630.82211.16171.54111.95712.40712.8892水位0.1000.1100.1200.1300.1400.1500.1600.1700.1800.190流量3.40183.94344.5127
10、5.10895.73076.37757.04847.74298.46029.1997水位0.2000.2100.2200.2300.2400.2500.2600.2700.2800.290流量9.961010.74311.54712.37013.21413.21413.21413.21413.21413.214水位0.3000.3100.3200.3300.3400.3500.3600.3700.3800.390流量13.21413.21413.21413.21413.21413.21413.21413.21413.21413.2140.076米喉道巴歇尔槽水位流量对应表 水位单位：米 流量单
11、位：升/秒水位0.0000.0100.0200.0300.0400.0500.0600.0700.0800.090流量0.00000.14070.41190.77221.20621.70462.26132.87163.53194.2393水位0.1000.1100.1200.1300.1400.1500.1600.1700.1800.190流量4.99145.78606.62147.49608.40859.357510.34211.36112.41313.499水位0.2000.2100.2200.2300.2400.2500.2600.2700.2800.290流量14.61615.76416.94218.15119.38920.65521.95023.27224.62125.998水位0.3000.3100.3200.3300.3400.3500.3600.3700.3800.390流量27.40028.82930.28331.76331.76331.76331.76331.76331.76331.7630.
