最小二乘法在公路试验数据处理中的应用

Application of Least Squares in Highway Experimental Data Processing

以预应力混凝土钢绞线的弹性模量和1 000 h松弛率计算为例,运用Excel图表建立数学模型和相关系数检验,采用线性回归方法和最小二乘法原理来处理,能够得到理想的方程和准确的结果。这种方法也可以很好地应用于其他的公路试验数据处理。

In the calculation of the elasticity modulus and the 1000h laxity ratio of the steel strand for prestressed concrete, the mathematical models and the correlation eoefficient were established according to the excel tables, and at the same time the method of least squares and the method of linear regression were adopted. The results show that the ideal equation and the accurate results could be obtained. This method can be successfully applied in the data processing of other highway experiments.