本文简要介绍了我国大陆建成的第一条现代化公路——沪嘉高速公路的设计。其中包括工程概况,主要技术指标,道路工程设计,互通式立交设计,桥梁工程,排水工程,交通监控系统,交通标志标线与安全设施设计以及收费系统设计。鉴于软土地基处理是建设沪嘉高速公路的关键技术问题,作者在软土地基处理设计与测试分析方面作了较详细的论述。 This article briefly introduces the design of Hujia Expressway, the first modernized highway built in mainland China. Including the project overview, the main technical indicators, road engineering design, interchange design, bridge engineering, drainage engineering, traffic monitoring system, traffic signs marking and safety facilities design and charging system design. In view of the fact that soft soil foundation treatment is the key technical issue for the construction of Shanghai-Jiazhou Expressway, the author made a detailed discussion on the design and test analysis of soft soil foundation treatment.