DiseoDISEOS DE GRADAS EN CANALES DE SECCION
RECTANGULARPROYECTO:CONSTRUCCION DEL CANAL DE RIEGO SAN PEDRO,
DISTRITO SAN PEDRO DE CHANA-HUARI-ANCASHTRAMO :Km 11+780 a
11+880Progresiva de inicio :11780Ancho del canal rectangular ( b
)0.6m1Caudal a canducir ( Q )200l/sYn1Yc2Tirante normal aguas
arriba (subcritico)0.2246mTirante normal aguas abajo
(subcritico)0.2246ma3Caudal unitario q = Q / b =0.333m/s x mLuego
Yc =( q2 / g )1/3 =0.225mdY1Y2Yn2CALCULOS PARA DETERMINAR LA
LONGITUD "d" DE LAS GRADASN
GRADAaK=a/YcYoXo=Yo/YcY1/YoYd/YcdPROGRESIVAdfLr(m)(m)(Tab 1)(m)(Tab
2)(m)InicioFinal10.803.5560.2251.0000.430.0974.51.0011780.00+11781.00+20.803.5560.0970.4310.820.0807.21.6011781.00+11782.60+30.803.5560.0800.3560.960.0777.81.7511782.60+11784.35+En
la ltima grada el tirante conjugado menor es Y1
=0.07640.803.5560.0770.3420.990.0767.91.8011784.35+11786.15+Luego50.803.5560.0760.3381.000.0767.91.8011786.15+11787.95+60.803.5560.0760.3381.000.0767.91.8011787.95+11789.75+A1=bxY1=0.05m270.803.5560.0760.3381.000.0767.91.8011789.75+11791.55+80.803.5560.0760.3381.000.0767.91.8011791.55+11793.35+V1=Q/A1=4.39m/s90.803.5560.0760.3381.000.0767.91.8011793.35+11795.15+El
tirante conjugado mayor
resulta100.803.5560.0760.3381.000.0767.91.8011795.15+11796.95+110.803.5560.0760.3381.000.0767.91.8011796.95+11798.75+=0.51m120.803.5560.0760.3381.000.0767.91.8011798.75+11800.55+130.803.5560.0760.3381.000.0767.91.8011800.55+11802.35+140.803.5560.0760.3381.000.0767.91.8011802.35+11804.15+A2=bxY2=0.31m2150.803.5560.0760.3381.000.0767.91.8011804.15+11805.95+V2=Q/A2=0.65m/s160.803.5560.0760.3381.000.0767.91.8011805.95+11807.75+170.803.5560.0760.3381.000.0767.91.8011807.75+11809.55+Longitud
del resalto
(Lr)180.803.5560.0760.3381.000.0767.91.8011809.55+11811.35+190.803.5560.0760.3381.000.0767.91.8011811.35+11813.15+Lr
= 6 ( Y2 - Y1 )
=2.60m200.803.5560.0760.3381.000.0767.91.8011813.15+11814.95+210.803.5560.0760.3381.000.0767.91.8011814.95+11816.75+Longitud
de poza final L = df + Lr
=4.40m220.803.5560.0760.3381.000.0767.91.8011816.75+11818.55+230.803.5560.0760.3381.000.0767.91.8011818.55+11820.35+Profundidad
del colchon: h = Y2-Yn
=0.28m240.803.5560.0760.3381.000.0767.91.8011820.35+11822.15+250.803.5560.0760.3381.000.0767.91.8011822.15+11823.95+260.803.5560.0760.3381.000.0767.91.8011823.95+11825.75+0270.803.5560.0760.3381.000.0767.91.8011825.75+11827.55+280.803.5560.0760.3381.000.0767.91.8011827.55+11829.35+290.803.5560.0760.3381.000.0767.91.8011829.35+11831.15+300.803.5560.0760.3381.000.0767.91.8011831.15+11832.95+310.803.5560.0760.3381.000.0767.91.8011832.95+11834.75+320.803.5560.0760.3381.000.0767.91.8011834.75+11836.55+330.803.5560.0760.3381.000.0767.91.8011836.55+11838.35+340.803.5560.0760.3381.000.0767.91.8011838.35+11840.15+350.803.5560.0760.3381.000.0767.91.8011840.15+11841.95+360.803.5560.0760.3381.000.0767.91.8011841.95+11843.75+370.803.5560.0760.3381.000.0767.91.8011843.75+11845.55+380.803.5560.0760.3381.000.0767.91.8011845.55+11847.35+390.803.5560.0760.3381.000.0767.91.8011847.35+11849.15+400.803.5560.0760.3381.000.0767.91.8011849.15+11850.95+410.803.5560.0760.3381.000.0767.91.8011850.95+11852.75+420.803.5560.0760.3381.000.0767.91.8011852.75+11854.55+430.803.5560.0760.3381.000.0767.91.8011854.55+11856.35+440.803.5560.0760.3381.000.0767.91.8011856.35+11858.15+450.803.5560.0760.3381.000.0767.91.8011858.15+11859.95+460.803.5560.0760.3381.000.0767.91.8011859.95+11861.75+470.803.5560.0760.3381.000.0767.91.8011861.75+11863.55+480.803.5560.0760.3381.000.0767.91.8011863.55+11865.35+490.803.5560.0760.3381.000.0767.91.8011865.35+11867.15+500.803.5560.0760.3381.000.0767.91.8011867.15+11868.95+510.803.5560.0760.3381.000.0767.91.8011868.95+11870.75+520.803.5560.0760.3381.000.0767.91.8011870.75+11872.55+530.803.5560.0760.3381.000.0767.91.8011872.55+11874.35+540.803.5560.0760.3381.000.0767.91.8011874.35+11876.15+550.803.5560.0760.3381.000.0767.91.8011876.15+11877.95+560.803.5560.0760.3381.000.0767.91.8011877.95+11879.75+44.8099.7500
Walter Rios E.:Slo esta permitido insertar filas en la zona
intermedia del cuadro y copiar frmulas por fila o eliminar tambien
solo las filas intermedias del cuadro y luego copiar una fila
superior a las inferiores de la fila eliminada
TablasCOCIENTE DE TIRANTES ANTECEDIDAS Y SEGUIDAS DE FLUJO
SUPERCRITICO
(Y1/Yo)K=a/Yc234567891011121314151617180.200.250.300.350.400.450.500.550.600.650.700.750.800.850.900.951.001.00Xo=Yo/Yc0.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.001.000.251.321.221.181.081.041.020.990.980.940.920.900.860.820.810.790.750.710.710.501.531.341.241.141.061.020.980.940.890.870.830.810.770.750.720.690.650.650.751.701.401.281.161.081.010.950.900.850.820.780.750.710.690.660.630.600.601.001.761.451.301.161.071.000.920.860.820.780.740.710.680.650.620.590.560.561.251.781.481.301.161.050.970.890.840.790.760.710.680.650.620.590.570.540.541.501.781.481.281.141.030.940.860.820.770.730.680.650.620.600.570.550.520.521.751.761.461.261.121.000.910.830.790.740.700.660.630.600.580.550.530.500.502.001.741.421.241.090.980.880.820.770.730.680.640.620.580.560.530.510.480.482.251.711.391.211.070.960.870.800.760.710.670.630.600.570.540.520.500.470.472.501.671.351.181.040.940.850.780.740.690.650.610.580.550.530.510.490.460.462.751.641.341.151.020.910.840.770.720.680.640.600.570.540.520.500.480.450.453.001.601.321.121.000.880.820.750.700.670.620.580.560.530.510.490.470.440.443.251.571.301.110.990.880.810.750.700.660.620.580.550.530.510.490.460.440.443.501.541.281.100.970.870.790.740.690.650.610.580.540.520.500.480.460.430.433.751.521.271.080.960.860.790.730.680.650.610.570.540.510.490.470.450.430.434.001.501.261.070.940.840.780.720.660.640.600.560.540.500.480.460.440.420.424.251.491.251.060.940.840.780.720.660.640.600.560.540.500.480.460.440.420.424.501.481.241.060.930.830.770.710.660.630.590.550.530.500.480.460.430.410.414.751.471.221.050.930.830.770.710.660.630.590.550.530.490.470.450.430.410.415.001.461.211.040.920.820.760.700.660.620.580.540.520.490.470.450.430.400.405.251.451.201.040.920.820.760.700.660.620.580.540.520.490.470.450.420.400.405.501.451.201.030.920.820.750.700.650.610.580.540.510.490.470.450.420.400.405.751.441.191.030.910.810.750.690.650.610.570.530.510.480.460.440.420.400.406.001.431.181.020.910.810.740.690.640.600.570.530.500.480.460.440.420.400.406.251.431.181.020.910.810.740.690.640.600.570.530.500.480.460.440.420.400.406.501.431.171.020.910.810.740.690.640.600.570.530.500.480.460.440.420.400.406.751.421.171.010.900.800.740.680.640.600.560.520.500.480.460.440.420.400.407.001.421.161.010.900.800.740.680.640.600.560.520.500.480.460.440.420.400.407.251.421.161.010.900.800.740.680.640.600.560.520.500.480.460.440.420.400.407.501.421.161.010.900.800.740.680.640.600.560.520.500.480.460.440.420.400.407.751.421.161.000.900.800.740.680.640.600.560.520.500.480.460.440.420.400.408.001.421.161.000.900.800.740.680.640.600.560.520.500.480.460.440.420.400.40TABLA
N 02TABLA DE DISTANCIA ENTRE GRADAS EN FLUJO SUPERCRITICO
(D=d/Yc)K=a/Yc0.20.30.40.50.60.70.80.911Xo=Yo/YcYo0.02.52.31252.1251.93751.751.56251.3751.1875110.54.43.83.43.132.92.82.62.42.4a1.05.64.84.33.83.53.33.23.133X1=Y1/YcY11.56.65.854.54.13.93.73.63.53.5Xo
=
Yo/Yc2.07.36.55.75.14.64.343.93.83.8d2.57.97.26.45.654.64.34.2443.08.47.76.96.15.54.94.64.454.34.33.58.98.27.46.55.85.24.84.74.54.54.09.38.67.96.96.25.554.84.64.64.59.89.18.37.46.55.75.354.84.85.010.29.58.77.76.865.55.25555.510.66666666679.859.058.057.16.25.655.3755.15.16.011.133333333310.29.48.47.46.45.85.55.25.26.511.8510.78333333339.88.657.66.665.655.35.37.012.566666666711.366666666710.28.97.86.86.25.85.45.47.512.833333333311.633333333310.459.28.0576.355.955.555.558.013.111.910.79.58.37.26.56.15.75.7
Tablas
0.200.250.300.350.400.450.500.550.600.650.700.750.800.850.900.951.00K=a/YcY1/YoGRAFICO
PARA LA DETERMINACION DE Y1/Yo
Hoja3
0.20.30.40.50.60.70.80.91K=a/YcD=d/YcGRAFICO PARA CALCULAR
D=d/Yc
