双曲线法在高速公路软基沉降预测中的应用  

Application of Hyperbolic Method in Soft Soil Ground Settlement Prediction for Expressway

作　　者：钟国坤[1] 赵小芹[1] 

机构地区：[1]华南理工大学土木与交通学院,广州510640

出　　处：《科学技术与工程》2010年第27期6804-6808,共5页Science Technology and Engineering

摘　　要：路基沉降预测与控制是软土地区高速公路建设中的一个主要问题。由于各种理论计算方法本身的局限性,以及工程地质条件的复杂性,地基沉降完全依靠理论计算是不可能或不精确的。因此,实际工程中经常采用根据软基沉降监测结果来预测工后沉降的方法。结合广东省某高速公路软基现场监测结果,介绍双曲线法原理,由实测数据得到拟合曲线,并进行预测分析。研究结果表明:双曲线法具有较高的预测精度,可以为软基路段的养护提供决策依据。Settlement prediction and control is one of the main issues for expressway construction in soft soil areas.Though there are various theoretical calculations methods,as their own limitations and the complexity of engineering geological conditions,ground settlement can’t be precised if fully rely on theoretical calculations,so in practical engineering frequently use the method that according the monitoring results to predict the post-construction settlement.With the field monitored settlement at a expressway in Guangdong,introduced the principle of the hyperbolic method,obtained the fitting curve from in-situ data,and the predictions are analyzed.The results show that the hyperbolic method has high precision,and can be provide advise for making decision on expressway’s maintenance.

关 键 词：高速公路 软基 双曲线法 监测 沉降预测 

分 类 号：TU433[建筑科学—岩土工程]