因素分析法在观测数据处理上的应用

Integral analysis method and its application to observational data of dam

本文应用因素分析法进行大坝监测数据的整体分析，文中讨论了数学模型、因素提取的特征值法、旋转变换与因素解释等问题．计算示例表明，确能从大量观测数据中提取出含义明确的关键因素，它们与坝体变形性质吻合；由因素分析模型复制得到的数据与原数据很接近，有很高的相关系数；利用因素分析还能对观测数据进行检错、校正与补缺．

The factor analysis method including mathematical model, eigenvalue method of factor abstraction, rotational transformation and factor explanation, and its application to integral analysis of observational data of large dam have been presented in this paper. Results show that the critical factors abstracted can reflect the deformation characteristics of arch dam. Data reproduced from factor analysis well coincide with the original observational data and errors in observation can also be detected and corrected.