摘要
Abstract
Based on the data of geotechnical engineering tests for 7602 groups clay in Beijing, the correlativities among the sort indexes and physical indexes are studied, and the corresponding unitary - pluralistic regression equations and the relativity coefficients are given. Results of the sort index regression analysis show the follows: the correlativities among water content and void ratio, degree of saturation, liquid limit, plasticity index are relatively good. The correlativities among liquid limit and specific gravity, void ratio, plastic limit, plasticity index are relatively good. The correlativities between liquidity index and degree of saturation, between plastic limit and void ratio, between void ratio and density, between degree of saturation and liquidity index, between plasticity index and specific gravity, are relatively good. Results of the physical index regression analysis show the follows: The correlativity between two compressive modulus E\ and E2 is good. The correlativities among E2 and E1, original stress are good. The correlativities among E2 and cohesive force, inner friction, E1, void ratio are good. The correlativities among E2 and E1, cohesive force, inner friction are good. Concerning index through the correlative equations is not advised, but can used as reference in area in lack of data.关键词
北京地区/粘性土/分类指标/力学指标/回归分析/相关系数Key words
Beijing area/Clay/Sort index/Physical index/Regression analysis/Correlativity coefficient分类
建筑与水利
