摘要
路基沉降预测是保障道路安全施工的重要工作之一。在预测工作中,模型选取很关键。本文利用差分法对主要路基沉降预测模型,包括对数曲线预测模型、皮尔曲线模型和多项式曲线模型等方法进行差分计算。对工程现场实测值进行差分分解,探讨适合不同监测点的预测模型,将其差分法分析的最佳拟合模型应用于实际监测值拟合,研究结果表明,拟合效果较好,能够快速确定预测模型,可避免模型尝试的盲目性,对类似工程具有较好的应用价值。
Subgrade settlement prediction is one of the road safety construction important works. In the process of forecasting , model selection is critical. Using the differential method, the article difference calculates subgrade Settlement prediction models, including the logarithmic curve prediction model, Pierre curve model and polynomial curve mode/. After differential decomposing the measured val- ue, it explores prediction models for different monitoring Points. Best-fit models are applied to the monito- ring values fitting. The results show that it has well fitted and quickly determines the prediction models. It also can avoid the blindness of selecting models, and has a good application for similar engineering.
出处
《公路工程》
北大核心
2012年第5期180-182,213,共4页
Highway Engineering
关键词
沉降预测
差分法
预测模型
对数曲线
皮尔模型
settlement prediction
difference method
prediction model
logarithmic curve
Pierre model
