采用珠三角地区某高速公路软基路段软土进行室内一维固结蠕变试验,对试验数据进行分析,绘出该软土的蠕变特性曲线,并对曲线进行分析。利用数值分析软件origin,采用不同的蠕变模型拟合曲线,得出模型参数值,以相关系数R2评估拟合精度,从而确定合适的流变模型。现场实测数据反映所得模型的合理性,对同地区高速公路路基沉降控制具有一定的指导意义。 The indoor one-dimensional consolidation creep test was conducted on soft ground of a highway in the Pearl River Delta region. The experimental data were analyzed and the creep characteristic curve of the soft soil was plotted. The curves were also analyzed. Using the numerical analysis software origin, the curves were fitted by different creep models, the model parameters were obtained, and the fitting accuracy was evaluated by the correlation coefficient R2 to determine the appropriate rheological model. The measured data in the field reflect the rationality of the obtained model, which is of guiding significance to the settlement control of subgrade in the same area.