石灰改良膨胀土填筑路基施工研究

Study on Construction of Subgrade with Lime Improved Expansive Soil

膨胀土是一种会给高等级公路路基工程带来严重破坏的高塑性粘土,特别是会对路基工程产生变形破坏作用。利用掺拌石灰进行膨胀土土性改良,使改良后的土料各项指标达到路基填筑的使用要求,可解决换填法的弃土和环保问题。

Expansive soil is a kind of high plastic clay which will cause serious damage to the subgrade engineering of high grade highway.For the expansive soil modified by mixing lime, the soil indicators improved to achieve the use of subgrade filling requirements, can solve the problem of environmental protection and waste soil replacement method.