昆明盆地硬壳层标贯击数与物理指标的相关性研究

摘要

本文通过对大量土工试验数据和原位测试数据的统计分析,对昆明盆地硬壳层的标贯击数与物理指标之间的相关性进行研究,并进行了单因素和多因素的回归分析.分析结果表明:昆明盆地硬壳层的标贯击数与各主要物理指标的单一相关性较差;通过SPSS软件进行多元线性回归分析,获得3个经验公式,结果表明标贯击数与液性指数、孔隙比、塑性指数有较好的多元线性相关关系.%Through the statistical analysis of soil test data and in situ testing data, this paper studies on the correlation between the SPT blow count and the physical index of the crust layer in Kunming basin . And the single factor and multifactor regression analysis was carried out. The results show that there is a bad single correlation between SPT blow count and gravity density, void ratio, water content, liquid limit, plastic limit and liquid index of the crust layer in Kunming basin. And through multiple linear regression analysis of SPSS, access to empirical formula.