For this generalized physical model, the excavation efficiency can up to 0.95, the relevant dredging dimensions are 200-300width, 2-3deepth,10km length and 1/1000 slope.5.
相应的挖槽尺寸近似宽200—300m，深2—3m，长10km左右，槽底坡降为1／10000。
参考来源 - 黄河下游河道疏浚挖槽效果的概化模型试验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
给出了管输效率与流量、水力坡降与流量的关系曲线。
The relations of pipeline efficiency versus flowrate and that of hydraulic slope versus flowrate are drawn.
当铺盖长度达到一定值时，水力坡降稳定且渗流量的变化也不明显。
If the blanket length reaches certain value, its hydraulic gradient is steady and the variety of seepage discharge also not obvious.
道路沿线建筑、绿化、坡降、路面宽窄、交通管理等对等效声级也有很大影响。
All have shown that build and afforestation along traffic main, slope, road width, traffic management and so on have great effect.
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