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针对规范“道路红线宽度超过40 m的城镇干道,宜在道路两侧布置排水管道”的问题,以两个不同红线宽度的道路断面组合和排水管道布管型式为例,分析了雨水管和污水管单侧布管和双侧布管工程造价的关系,得出双侧布管工程造价高于单侧布管的结论。阐述了雨水连管长度超过25 m不会对泄水能力和管道疏通有较大的影响,宽红线道路横过路管引起的管道埋深增加很小,对施工和造价影响不大。
In view of the problem of “laying of drainage pipes on both sides of urban roads in urban roads with a width of more than 40 m on the road red line”, taking the combination of two road sections with different red line width and the distribution pattern of drainage pipes as an example, The relationship between the single-side pipe of sewage pipe and the double-side pipe laying project, and concludes that the cost of double-side pipe-laying project is higher than unilateral pipe-laying. It is described that the length of rainwater connecting pipe is more than 25m, which will not greatly affect drainage capacity and pipeline dredging. The increase of pipe depth caused by wide red road crossing the road pipe is small, which has little impact on construction and cost.