Abstract：Research purposes：Passenger dedicated line requires a strict deformation control, but the test results of the physical and mechanic parameters about original red clay along Wuchang-Guangzhou Dedicated Line have the large discreteness. The values of parameters used in design will cause a direct impact on the construction quality and cost, meanwhile the relevance among parameters increases the complexity for the analysis of problem. In order to make an evaluation of the red clay, the statistic analysis, hierarchical cluster analysis and principal component analysis have made with the theory of multivariate statistical analysis and statistical software SPSS.
Research conclusions：Through statistic analysis, the means and 95% confidence interval of each parameter are obtained. It is suggest that means should be used in design, except the complex geological conditions, or special sections. The hierarchical cluster analysis indicates the property of red clay can be divided into three parts, namely the structure, strength and status, and the principal component analysis indicates that the values obtained from principal component analysis can be used to assess the possibility of red clay for road.
杨果林，王亮亮. 客运专线红粘土物理力学指标统计分析[J]. 铁道工程学报, 2009, 26(3): 1-6.
YANG Guo-lin, WANG Liang-liang. Statistics Analysis of Physical and Mechanic Parameters about Red Clay along Passenger Dedicated Line. 铁道工程学报, 2009, 26(3): 1-6.
2009, Vol. 26 
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