城郊市政道路排水工程主要发挥收集雨水、防洪排泄、排除城郊居民生活污水等功能。本文以三亚市羊栏村排水设计为例,从城郊市政排水管网的管位布置、排水走向、管道选材、设计参数取值等方面进行设计探讨,有效地保证发挥排水工程的功能。 Outskirts municipal road drainage works mainly to collect rainwater, flood control and drainage, suburban living out of sewage and other functions. Taking the drainage design of Yilan Village in Sanya City as an example, this paper discusses the design of the drainage pipe network in the suburbs, such as the pipe layout, the drainage direction, the selection of pipelines, the design parameters and so on, effectively ensuring the drainage works.