应用最小二乘法和Excel图表法处理E_(v2)数据

E_(v2) data treatment with least squares procedure and Excel diagram method

针对高速铁路对路基检测技术的要求,介绍二次变形模量Ev2试验数据的二次曲线拟合的两种方法,即最小二乘法和Excel图表法,并提出处理过程中应注意的问题,从而推广这两种方法的应用。

Aiming at express highway requirement on roadbed detection technology, two methods to fit secondary curve of secondary deformation Ev2 experimental data were introduced, which were least squares procedure and Excel diagram method, the problems need attention during processing were proposed so as to popularize the methods.