堤防滲流計(jì)算

1、堤防滲流計(jì)算（有詳細(xì)的計(jì)算過程和程序）根據(jù)堤《防工程設(shè)計(jì)規(guī)范GB5028698》附錄E.2.1不透水堤基均質(zhì)土堤下游無排水設(shè)備或有貼坡式排水項(xiàng)目計(jì)算式數(shù)值單位備注上游坡度m1=3=31:m1下游坡度m2=3=31:m2堤頂寬度B=6=6m堤頂高程▽頂=27=27m堤底高程▽底=17=17m上游水位▽1=24.8=24.8m下游水位▽2=18=18m滲透系數(shù)k=1.00E05=1.00E05ms堤身高度H=2717=10m上游水深H1=2

2、4.817=7.8m下游水深H2=1817=1mL=(2724.8)36103=42.6m上有水面至下游堤腳ΔL=37.8(231)=3.343mm1H1(2m11)L1=42.63.343=45.943mLΔL試算法計(jì)算逸出高度h0，假設(shè)h0的試算范圍h01～h02，計(jì)算的步長(zhǎng)以及精度h01=1=1mh02=10=10m步長(zhǎng)=0.02=0.02m精度=0.01=0.01m試算得到h0=2.54=2.54m手動(dòng)輸入qk=(7.8^22.

3、54^2)(2(45.94332.54))=0.7096mqk=0.7047=0.7047m平均qk=(0.70960.7047)2=0.7072m平均滲流量q=0.70720.00001=7.07E06m3sm浸潤(rùn)線方程y=SQRT(6.45161.4144x)下游壩坡最大滲出坡降J=13=0.3331m2附錄E.2.2不透水堤基均質(zhì)土堤下游設(shè)褥墊式排水項(xiàng)目計(jì)算式數(shù)值單位備注上游坡度m1=3=31:m1下游坡度m2=5=51:m2堤頂

4、寬度B=6=6m堤頂高程▽頂=27=27m堤底高程▽底=17=17m上游水位▽1=24.8=24.8m下游水位▽2=18=18m棱體頂高程=19=19m到下游堤腳棱體臨水坡坡率m3=2=21:m3滲透系數(shù)k=1.00E05=1.00E05ms堤身高度H=2717=10m棱體高度HL=1917=2m上游水深H1=24.817=7.8m下游水深H2=1817=1mL=(2724.8)361052522=48.6m上游水面至棱體ΔL=37.8

5、(231)=3.343mm1H1(2m11)L1=48.63.343=51.943mLΔL系數(shù)c=1.115=1.115與m3有關(guān)逸出高度h0=1SQRT((1.11551.943)^2(7.81)^2)1.11551.943=1.398mqk=(7.8^21.398^2)(251.943)=0.604m滲流量q=0.6040.00001=6.04E06m3sm浸潤(rùn)線方程y=SQRT(1.95441.208x)下游壩坡最大滲出坡降J=1