通过对多元回归分析原理及模型介绍,结合三峡工程大坝混凝土试验实测数据,运用统计分析程序SPSS对影响混凝土抗裂性能指标的五大因素进行了多元线性回归分析,得到了各因素之间的相互关系及各因素对抗裂指标的影响权重。

The paper has made a multiple linear regression analysis of the five major factors that affect concrete crack-resistant performance indexes and obtained the correlations among the factors and the weight of each factor affecting the crack resistance indexes based on the Three Gorges dam concrete laboratory test results by introducing the multiple regression analysis principle and model and by applying the statistical analysis program SPSS as well.