滨海新区软土路基沉降曲线拟合分析

软土路基沉降问题是软土地区公路工程建设中面临的技术难题之一。分析双曲线法、指数法、三点法、对数法对于拟合天津滨海新区软土路基桥头段采用加固土桩及预压处理时沉降数据的误差,并且比较分析双曲线法拟合和理正计算的预压期沉降。分析结果表明:对于滨海新区软土路基上的加固土桩+预压处理路段,双曲线比其余的曲线拟合方法精度高。

Analysis on Settlement Curve Fitting of Soft Soil Roadbed in Binhai New Area

The settlement problem of soft soil roadbed is one of technical difficulties in the highway engineering construction of soft soil regions.The article analyzes the errors of the settlement data when the hyperbolic method,index method,three-point method and logarithmic method are used to fit the application of reinforcing soil pile and preloading in the bridgehead section of soft soil roadbed in Tianjin Binhai New Area,and compares and analyzes the settlements of preloading period by the hyperbolic fitting method and Lizheng calculaion.The analysis result shows that the precision of double-curve fitting method is higher than the other curve methods in the reinforced soil pile + preloading treated road sections of the soft soil roadbed in Binhai New Area.