从“确保沉降预测精度、简化沉降观测工作”的角度出发,根据软土地基固结沉降特性,分析了指数曲线法现行计算方法的应用特点,对指数曲线法的计算过程进行了优化.以湖南省岳阳市城陵矶(松阳湖)进港道路K2+850断面为例,分析了沉降预测结果的精度变化规律.研究结果表明,正确应用指数曲线法,不仅可使软土地的沉降预测精度高,还能大大降低沉降观测频率,节省沉降观测投入,具有积极的应用价值.%According to the consolidation settlement characteristics of soft soil founda tion, the application characteristics of current calculation methods about exponential curve method were analyzed to ensure the settlement prediction accuracy and simplify the settlement observation work. A method to optimize the calculation process of expo nential curve was introduced. In the settlement prediction of the K2 + 850 cross-section of the road to Cheng Lingji Port (Song Yong Lake) at Yueyang City in Hunan province, the change rule of 'the settlement prediction accuracy was analyzed. The results indicate that using exponential curve method correctly can not only obtain a reliable- settlement prediction results, but also greatly reduce the frequency and investment of settlement observation, which has positive application value.
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