江苏某市政道路雨水口布置优化设计

The Optimization Design of Rainwater Outlet Layout for A Municipal Road in Jiangsu Province

为优化市政道路雨水口的布置、减少雨水口和雨水连接管的数量、节约工程造价、与海绵城市相结合,优化雨水系统,设计采用的方法是在绿化带中间间隔一定距离铺设透水砖或者植草沟,将机动车道内的雨水引入非机动车道内的雨水口,取消雨水口的横向串联,进而减少雨水口数量和雨水连接管长度。通过采用新型的布置方式取得了良好的效果:减轻了雨水负荷,提高了雨水口水头,改善了雨水口的水利条件;在机动车道上不再设置雨水口,提高了交通行驶的安全性,雨水口和雨水连接管数量明显减少,取得了不错的经济效益。研究结果表明,该新型布置方式实用可行,可为今后项目提供设计参考。

The purpose of this paper is to optimize the layout of municipal road stormwater outlets,to reduce the number of stormwater outlets and stormwater connecting pipes,to save the project costs,and to combine with sponge city to optimize the stormwater system.The research method is to lay permeable bricks or grass ditches with a certain distance in the middle of the green belt so as to introduce the rainwater in the motorway into the rainwater outlet in the non-motor lane,and to eliminate the horizontal series of rainwater outlet,thus reducing the number of rainwater outlet and the length of rainwater connecting pipe.By adopting the new arrangement,good results are obtained.The rain water load is reduced,the water head of the rain water outlet is increased,and the water conservancy conditions of the rain water outlet are improved.There is no need to set rainwater outlet on the motorway.The traffic safety is improved,the number of rainwater outlet and the length of rainwater connecting pipe are significantly reduced,and good economic benefits are obtained.The research results show that the new layout is practical and feasible,and can provide a reference for future projects.