用石灰处理膨胀土路基填料

Roadbed Padding Treatment with Lime Expansive Soils

膨胀土在低压时遇水会发生体积膨胀,失水时会发生体积收缩,对膨胀土路基进行处理是保证路基稳定工作的常用工程措施之一。本文介绍了膨胀土工程性质对公路工程的危害以及膨胀土的石灰处治方法,对不同石灰掺加剂量的实验结果进行了分析,并提出了石灰处理膨胀土的施工工艺及注意事项。

Expansive soils will have the volume expansion when meets low pressure and have the volume contraction when dehydrates. Roadbed padding treatment is one of the commonly used measures for guaranteeing the stability of the project. This article introduces the harm of inflation earth project nature to the highway engineering as well as the inflation earth lime treatment method, carries on the analysis on the experimental result of the dosage added to different lime, and proposes the construction craft of lime treatment on inflation earth and notices.