截排水沟计算指标值表
山坡集雨面积设计排水沟流排水沟长度沟底纵坡比降
沟槽糙率沟槽边坡
系数F (km 2)
Q (m 3/s )
L (m )i n m 1
0.29580.89091/5000.035 1.5002
0.346 1.04221/5000.035
1.500
滑坡治理地段
谢才系数排水沟沟
底坡降
沟道糙率
渠道正常水
深
底宽
排水沟边坡
比
截排水沟
断面过水
量
沟槽深
C i n h b m Q H
43.5720.050.0170.40.40.2680.8030.6
43.5720.050.0170.40.40.2680.8030.6
40.8060.050.0170.20.40.2680.2760.4
42.4440.050.0170.30.40.2680.5140.5
38.8950.050.0170.150.30.2680.1280.35
43.1270.050.0170.30.50.2680.6620.5
43.1270.050.0170.30.50.2680.6620.5
28.5540.0050.0280.50.510.516
28.5500.0050.0280.50.510.516
0.26794919275
0.46630765865
沟底宽沟口上
宽沟槽深沟槽断面面
积
过流断
面面积
b(m)B(m)H(m)S(m2)W(m2)
1.500 1.7 1.5
2.4 2.11 1.700 1.9 1.6 2.88 2.47
Q=CA
排水沟边坡角度
M10砂浆抹面
1940.21 2940.96 244.23 367.06 113.98
38.71
38.71
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