公路膨胀土路基的处理技术

Techniques for Treating Highway Swelling Soil Subgrade

论述泰安膨胀土路基的处理技术，包括采用外掺料改良膨胀土、全断面封闭膨胀土路基顶层，并进行砂垫层、石灰、ＮＣＳ固化材料加固改良膨胀土室内与实体工程试验，经几年行车验证，表明措施有效，试验成功。

The techniques for treating Tai′an swelling soil subgrade are expounded in this paper;the treatments include the improvement of swelling soils by adding admixtures and the whole cross section of swelling soil subgrade top layer is sealed by a soillime overlay.Tests for improving swelling soils by means of sand blanket,lime and NCS solidifying material were carried out in both the laboratory and the field.Verification undergoing several year′s vehicular traveling shows that the measures are effective and the tests are successful.