河道堤防冲刷深度计算(新计算)

注：37#断面洪水位：1315.58（按矩形断面计算）序号横断面流量河宽深泓线高程断面间距累计距离位能水深断面面积流速流速水头总水头湿周水力半径R2/3流量模数坡能河段平均坡能沿程水头损失局部水头损失E1=z1+v2/2g+hf+hjMATCH_ word word文档格式规范word作业纸小票打印word模板word简历模板免费word简历 _1715982519325_2洪水位QbLLZhωvv2/2gE2=Z2+v2/2gxRK=(ω*R2/3)/nJhfhj(m3/s)(m)(m)(m)(m)(m)(m)(m2)(m/s)(m)(m)(m)(m)(m3/s)(m)(m)(m)1横37113065.001310.440.000.001315.585.14334.13.40.58375.34.4382.7021482.840.002771316.352横36113057.201310.6054.8354.831315.534.93282.04.00.8181316.3567.14.2052.6117492.290.004170.003470.19001316.563横35113053.201310.7344.7899.611315.584.85258.04.40.9781316.5662.94.1022.5615742.460.005150.004660.20901316.794横34113055.801310.8850.05149.661315.995.11285.14.00.8001316.7966.04.3192.6518004.960.003940.004550.22801316.975横33113058.901311.0350.07199.731316.295.26309.83.60.6781316.9769.44.4632.7119995.370.003190.003570.17901317.166横32113061.901311.2163.56263.291316.575.36331.83.40.5911317.1672.64.5692.7521750.650.002700.002950.18701317.317横31113062.901311.3757.91321.201316.745.37337.83.30.5701317.3173.64.5872.7622201.540.002590.002640.15301317.458横30113060.301311.5248.78369.981316.815.29319.03.50.6401317.4570.94.5002.7320702.520.002980.002780.13601317.589横29113060.801311.6544.72414.701316.955.30322.23.50.6271317.5871.44.5132.7320953.230.002910.002940.13201317.7210横28113064.101311.8053.70468.401317.175.370344.23.30.5491317.7274.84.5992.7722666.370.002490.002700.14501317.8311横27113073.901311.9550.79519.191317.435.480405.02.80.3971317.8384.94.7722.8327331.090.001710.002100.10701317.9012横26113076.601312.0844.68563.871317.535.450417.52.70.3731317.9087.54.7712.8328170.040.001610.001660.07401317.9813横25113076.601312.2145.30609.171317.605.390412.92.70.3821317.9887.44.7252.8227680.370.001670.001640.07401318.1414横24113065.401312.4270.31679.481317.565.140336.23.40.5761318.1475.74.4422.7021627.090.002730.002200.15501318.5315横23113056.301312.9050.90730.381317.604.700264.64.30.9291318.5365.74.0282.5315948.420.005020.003880.1970.21319.1816横22113048.801313.3345.18775.561317.834.500219.65.11.3501319.1857.83.7992.4312730.710.007880.006450.2910.361319.7217横21113046.001313.7645.52821.081318.064.300197.85.71.6631319.7254.63.6232.3611108.770.010350.009110.4150.131320.1118横20113049.401314.1742.88863.961318.674.500222.35.11.3171319.9958.43.8072.4412903.510.007670.009010.38601320.2519横19113057.501314.5944.25908.211319.514.922283.04.00.8131320.3267.34.2032.6017548.250.004150.005910.26101320.5220横18113066.601315.0852.00960.211319.894.810320.33.50.6341320.5276.24.2032.6019864.160.003240.003690.19201320.7421横17113062.801315.5650.321010.531319.844.280268.84.20.9011320.7471.43.7672.4215492.440.005320.004280.21501321.0922横16113060.301316.0650.231060.761319.843.780227.95.01.2531321.0967.93.3592.2412171.850.008620.006970.35001321.5423横15113061.501316.5851.561112.321320.303.720228.84.91.2431321.5468.93.3192.2212119.000.008690.008660.44601322.0024横14113061.901317.0850.891163.211320.723.640225.35.01.2821322.0069.23.2572.2011787.370.009190.008940.45501322.5225横13113061.401317.5954.801218.011321.193.600221.05.11.3321322.5268.63.2222.1811481.170.009690.009440.51701323.1026横12113060.201318.1550.691268.701321.483.330200.55.61.6191323.1066.92.9982.089924.480.012960.011330.57401323.8727横11113060.301318.8950.251318.951321.923.025182.46.21.9561323.8766.42.7491.968523.040.017580.015270.76701324.6028横10113060.801319.6847.411366.361322.983.300200.65.61.6171324.6067.42.9772.079885.680.013070.015320.72601325.2329横9113060.601320.3048.741415.101323.633.330201.85.61.5981325.2367.33.0002.089994.800.012780.012920.63001325.8230横8113064.301320.7051.121466.221324.103.400218.65.21.3621325.4671.13.0752.1111006.620.010540.011660.59601325.9431横7113072.601321.0053.331519.551324.503.500254.14.41.0081325.5179.63.1922.1713116.450.007420.008980.47901325.8832横6113076.301321.8051.491571.041325.253.450263.24.30.9391326.1983.23.1642.1613507.490.007000.007210.37101326.6033横5113075.401322.3051.111622.151325.523.223243.04.61.1021326.6381.82.9692.0711952.860.008940.007970.40701327.5734横4113056.501322.4049.011671.161325.753.350189.36.01.8171327.5763.22.9952.089363.280.014560.011750.5760.371328.3735横3113048.001322.6048.281719.441326.243.640174.76.52.1321328.3755.33.1612.158959.350.015910.015240.7360.071329.0136横2113050.801323.2057.251776.691327.844.640235.74.81.1711329.0160.13.9232.4913960.480.006550.011230.64301329.3137横1113063.501323.8058.081834.771328.624.820306.13.70.6951329.3173.14.1852.6018924.100.003570.005060.29401329.31白龙江杜坝段河道冲刷深度计算书参考 资料 新概念英语资料下载李居明饿命改运学pdf成本会计期末资料社会工作导论资料工程结算所需资料清单 《城市防洪工程设计 规范 编程规范下载gsp规范下载钢格栅规范下载警徽规范下载建设厅规范下载 》（CJJ50-92）《防洪 标准 excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载 》（GB50201-94）《堤防工程设计规范》（GB50286-98）1、护岸冲刷深度计算依据《堤防工程设计规范》（GB50286—98）①顺坝及平顺护岸冲刷深度计算：式中：hS—局部冲刷深度（ｍ）；Hp—冲刷处的水深（ｍ）；Ucp—近岸垂线平均流速（ｍ／ｓ）；UC—泥沙的启动流速（ｍ／ｓ）；粘性与沙质河床采用张瑞瑾公式计算，卵石ｎ—与防护岸坡在平面上的形状有关，一般取ｎ＝1/4-1/6.河床采用长江科学院公式计算；d50—河床的中值粒径（ｍ）；H0—行进水流水深（ｍ）；rs,r分别为泥沙与水的重度（KN/m3),g为重力加速度（m/s2).Ucp的计算应符合下列规定：式中：U—行近流速（ｍ／ｓ）；η—水流流速分配不均匀系数，根据水流流向与岸坡交角α角查表采用。河道平顺段冲刷深度计算表河流名称及分段断面位置冲刷处的水深Hp(m)平均流速U(m/s)泥沙启动流速UC(m/s)系数n(rs-r)/rd50H0局部冲刷深度hB(m)平均流速Ucp(m/s)水流流速不均匀系数η水流方向与岸坡夹角α白龙江杜坝段河道1#断面5.212.161.110.201.080.02005.450.7452.1601.00《15℃8#断面5.52.571.120.201.080.02005.840.9962.5701.0014#断面5.792.791.130.201.080.02006.191.1502.7901.0018#断面6.153.111.140.201.080.02006.641.3683.1101.0022#断面6.323.031.140.201.080.02006.791.3613.0301.0036#断面5.341.751.110.201.080.02005.500.5101.7501.0045#断面5.252.031.110.201.080.02005.460.6762.0301.00②弯道凹岸冲刷深度采用水流斜冲计算公式计算水流斜冲岸坡冲刷深度计算表（右岸）河流名称及分段断面位置冲刷处的水深Hp(m)平均流速U(m/s)允许不冲流速UC(m/s)系数n(rs-r)/rd50H0局部冲刷深度hB(m)平均流速Ucp(m/s)水流流速不均匀系数η水流方向与岸坡夹角α白龙江杜坝段河道4#断面5.013.071.110.241.080.02005.491.6733.6841.50＞15℃28#断面6.552.11.140.241.080.02006.771.3692.5201.5033#断面5.611.541.120.241.080.02005.730.8121.9601.7535#断面5.291.81.110.241.080.02005.461.0082.2911.7538#断面5.31.731.110.241.080.02005.451.0202.3072.0042#断面5.371.991.110.241.080.02005.571.2482.6532.00结论:防洪堤基础冲刷深度平顺段及凸岸段设计值取1.5m,凹岸斜冲段设计值取2m.