浅议多元统计分析判别砂土液化

分析了多元统计方法在饱和在砂土液化判别方面的应用，笔者认为，在液化势函数的建立过程中，原始数据的可靠性及其标准化处理，对判别式有较大的影响，本文还结合实例，首次指出仅仅利用回判来检验判别式的精度是不充分的，很有必要对判别式中的自变量系数作定性检验。

PRELIMINARY DISCUSSION OF ESTIMATING THE LIQUEFACTION OF SAND WITH STATISTICAL ANALYSIS METHOD

This paper analyzes the application of the statistical analysis method to the estimation of the liquefaction of sand. It is found that the precision of the firsthand data and their normalization have a greateffect on the estimation formula. With'an example, the author first presents that it is not enough to examine the estimating formula only with the data that were used to establish the formula. It is very important to examine the variable coefficient with qualitative analysis.