盐渍土是一种特殊的土,具有腐蚀、盐胀、溶陷等不良工程特性。盐渍土地区公路路基填料是制约交通建设快速发展的重大岩土工程问题之一。为解决盐渍土的工程应用问题,通过大量的成分分析和室内外试验研究,对高速公路路基加固的可行性进行了论证,并提出了相应的一些施工技术要求,阐述了高速公路路基加固的重要意义。 Saline soil is a special kind of soil with poor engineering characteristics such as corrosion, salt expansion and dissolution. Subgrade filling in highway saline soil area is one of the major geotechnical problems which restrict the rapid development of traffic construction. In order to solve the problem of engineering application of saline soil, the feasibility of the reinforcement of expressway subgrade is demonstrated through a large number of component analysis and indoor and outdoor experimental studies, and some corresponding construction technical requirements are put forward. The importance of subgrade reinforcement in expressway significance.