掺生石灰、粉煤灰处理高塑指土填筑路基

Subgrade treated by adding the hard-burned lime and fly ashto high plasticity earth

针对青银高速公路河北段软土路基土方的填筑施工实践,研究过湿高塑指土路堤的填筑技术。阐述了掺入生石灰的作用机理、施工要点,并通过试验检测与效益分析,提出在大范围过湿高塑指土地区修筑路基,可加快工程进度,提高施工质量。

According to the filling construction practice of Qingdao-Yinchuan Expressway in Hebei Province, this article discusses the technology of filling embankment with excessive wet high plasticity earth, and describes the effect mechanism of adding the hard-burned lime and the main points of construction. Based on the testing and benefit analysis, it indicates that this construction technique can be used in the large area of excessive wet high plasticity earth, thus speeding the progress of project, upgrading the quality of construction and reducing the expenses.