膨胀土路堤设计与施工技术研究

Study on Design and Construction Technique of the Expansive Soil Embankment

膨胀土地区路堤修筑最关心的问题是在保证路基的强度和稳定性的前提下,如何合理利用膨胀土作填料,降低工程造价,同时减少借弃土方造成的水土流失与生态环境破坏。文章围绕土质改良方法及其经济效果开展研究,对膨胀土的路用性能怎样评价,如何采取技术措施减少其胀缩性使之成为可用的填料,实现填筑施工碾压的可操作性,提高路堤的整体强度和稳定性等方面进行了研究。

The most important problem of building expansive soil embankment is how to use expansive soil for fdling rationally, reduce construction costs, while reducing the soil erosion and ecological damage to the environment. This paper focuses on the methods of soil improvement and economic effects of research, and researches on some areas such as how to evaluate road performance of expansive soils, how to take technical measures to reduce their expansion and contraction so that it will become available filling, achieve the workability of filling construction RCC, and improve the overall strength and embankment stability.