近年来,随着我国经济的快速发展,我国公路建设的规模越来越大,大量的公路需要穿越软土地区,其难度不断提高。由于软土地基的压缩性高,渗透性低,固结变形持续时间长,所以软土作为地基对公路的安全稳定性是十分不利的,公路建设对软土处理提出了更高的要求。为了满足公路建设的要求,我国引进、发展了多种软土处理技术,积累了一定的经验,同时也存在一些问题。通过工程实例探讨了某高速公路软土地区路基的施工工艺与处理方法以及塑料排水板在工程中的应用,对工程实践具有重要的指导意义。 In recent years, with the rapid economic development in our country, the scale of road construction in our country is getting larger and larger, and a large number of highways need to cross the soft soil areas and the difficulty is continuously raised. Due to its high compressibility, low permeability and long consolidation duration, soft ground as a foundation is very unfavorable to the highway safety and stability. Highway construction has put forward higher requirements for soft soil treatment. In order to meet the requirements of highway construction, China introduced and developed many kinds of soft soil treatment technologies, accumulated some experience, and also had some problems. Through engineering examples, the construction technology and treatment method of subgrade in soft soil area of ​​a highway and the application of plastic drainage board in engineering are discussed, which have important guiding significance for engineering practice.