双曲线法和指数曲线法推算软土地基沉降量的准确性比较

Accuracy Comparison Between Hyperbola Method and Exponential Curve to Validate Soft Foundation Settlement

在堆载预压处理软土地基的实际工程中,沉降量的预测是十分重要的。通常根据沉降量实测曲线推算软土地基的最终沉降量。比较常用的方法主要有双曲线法和指数曲线法。为了确定哪一种方法的计算结果准确度更高,本文利用实际工程中的沉降量实测数据,用这2种不同的方法分别推算出软土地基的最终沉降量和相关计算参数。用后期实测沉降数据对这2种沉降量推算模型进行准确性验证。得出了在堆载预压处理软土地基中,采用双曲线法推算最终沉降量,计算结果更准确的结论。

In process of reinforcing soft foundation, it is important to predict settlement quantity. Generally, the final settlement of soft foundation is calculated by measured settlement curve. The most common - used method is that of hyperbola and exponential curve. To determine which result is more precise, this paper calculates respective final soft settlement and correlation coefficient by different methods based on field settlement datum. Using post - processing monitor datum to validate which prediction method is more precise. Finally a conclusion is drawn that the hyperbola method is more legitimate.