Aiming at expansive soil judgment in Xiangtan-Shaoyang Expressway,the attribute recognition model based on objective weight is developed in this paper.

• 结合(湘)潭-邵(阳)高速公路膨胀土的判别实践,运用属性数学理论,建立基于客观性权重的膨胀土属性识别模型。