修正指数曲线法在软土路基沉降预测中的应用

高速公路在设计选线的过程中软土地基工后沉降较大,影响路基的稳定性和路面结构的强度。因此,需要选取合理的软土地基处理方案来提高地基承载力,以减小路基沉降。文中以某高速公路为例,选取修正指数曲线法预测路基的工后沉降,对设计的地基处理方案的实施效果进行评价。

Application of Modified Index Curve Method in Settlement Prediction of Soft Soil Subgrade

During the design of the highway route, the soft ground settlement is large, which affects the substructure stability and pavement structure strength. Therefore, reasonable soft soil foundation treatment scheme should be selected to improve the bearing capacity of the foundation and reduce the subgrade settlement. This paper selects modified exponential curve method to predict the settlement after the roadbed and evaluate the foundation treatment project design, which has practical and guiding significance for expressway soft soil foundation treatment.