基于灰色关联优势分析冻胀融沉影响因素研究

为研究含水率、干密度、冷端温度、荷载对冻胀融沉特性影响的程度，建立灰色关联分析模型，对南京地区浅表层淤泥质粘土冻胀融沉试验数据进行计算，分析了各种因素对冻胀系数、融沉系数影响程度。结果表明:影响冻胀系数、融沉系数依次都为含水率、冷端温度、干密度、荷载，证明采用灰色关联分析影响冻胀、融沉因素的显著程度是准确可行的， 是一种很好的分析方法。

Research on Factors Influencing Frost Heaving and Thaw Collapsing Based on Grey Relational Preponderance Analysis

In order to study the extent of water content,dry density,cold end temperature and load influencing frost heaving and thaw collapsing,the model of grey relational preponderance analysis is established to calculate the test data of frost heaving and thaw collapsing of mucky clay at shallow strata in Nanjing region and to analyze various factors influencing the coefficients of frost heaving and thaw collapsing.The result shows that the factors influencing the two coefficients in turn are water content,cold end temperature,dry density,and load;and demonstrates that the use of grey relational preponderance analysis is accurate and feasible.It is a good method for analysis.