结合上海市青浦县境内的沪青平公路改线段的建设 ,探讨了内部排水系统布设和设计、施工工艺和养护要求。现场测试结果表明 ,内部排水系统的渗透性能或排水性能满足设计要求。目前 ,雨天能观察到大量雨水从试验路的排水管流出。 Combined with the construction of Huqingping highway in Qingpu County, Shanghai, the layout and design, construction technology and maintenance requirements of internal drainage system were discussed. Field test results show that the internal drainage system of drainage or drainage performance to meet the design requirements. At present, it is observed that a lot of rainwater flows out from the drains of the test roads in rainy days.