软土路基沉降预测方法的对比分析

Comparison Analyses on Forecast Methods of Soft Roadbed Settlement

软土路基沉降预测的方法很多.为实现对路基沉降的准确预测,在工程实践中需要选用哪种方法以及这些方法的实际运用取得的效果如何,是值得认真研究的问题.文中对两个断面分别采用BP人工神经网络法和双曲线法进行了沉降预测,并通过与实际观测的沉降值进行对比分析,得出两种方法各自的适用范围.

There are many ways to forecast the settlement of soft roadbed in engineering practices. In order to get an accurate prediction, It is very important to evaluate the effectiveness of these forecast methods. BP artificial neural networks and hyperbolic curve law were adopted to forecast the settlement of two sections in a certain highway construction. The applicabilities of these two methods were draw out when compared their predictive results with the corresponding site survey data.