高速公路超高段排水设计是公路设计者面临的难题之一。本文依托马巢高速建设工程,在总结以往工程经验的基础上,提出形式新颖的超高段排水方式——集水槽,结合采用集中预制、分节段安装的施工方法,不仅保证超高段雨水及时、有效地排除,便于质量控制,同时外表美观,与相邻路段的景观和谐、统一,并且为路面层间水提供了通道,特别适用于江南和东南沿海的多雨山区和重丘区高速公路的超高段。 Superhighway drainage design highway is one of the problems facing designers. On the basis of summarizing the experience of previous projects, this paper puts forward a new form of ultra-high-grade drainage system-sump, combined with the construction method of centralized prefabrication and sub-section installation, which not only ensures ultra-high rainwater Timely and effective exclusion, easy quality control, beautiful appearance, harmony and unity with landscapes of adjacent sections, and providing access to water between pavement layers, especially for the rainy and jungle expressways in the south and southeast coastal areas The ultra-high section.