以问题为导向做好公路排水工程设计

Take the problem as guidance to do the highway drainage engineering design

公路排水工程设计,应从"项目地现状水环境问题"、"项目建设引起水环境问题"、"项目地水环境规划问题"等三个方面进行分析并总结出所要解决的问题,以公路建设所引起的沿线水环境问题为导向,制定出公路排水工程设计技术路线图并编制出相应的公路排水工程设计方案。以交通部绿色高速公路示范公路延崇高速公路为例,在其排水工程设计中采用了渗、滞、蓄、净等方式对路面雨水径流进行消减和净化,减少公路的排水对周边水环境的不利影响。

The design of highway drainage engineering should be analyzed and summarize the problems to be solved from three aspects:"the current water environment problems of the project site","the water environment problems caused by the project construction"and "the project site water environment planning problems",and take the water environment problems caused by the highway construction as the guide,work out the technical road map of highway drainage engineering design and draw up the corresponding highway drainage engineering design plan.This paper takes the Yan Chong Expressway,a demonstration highway of the Ministry of Communications,as an example.In its drainage engineering design,methods such as seepage,retention,storage,and purification are used to cut and purify the road rainwater runoff,reduce the adverse effects of highway drainage on the surrounding water environment.