长江科学院院报2012，Vol.29Issue(11)：91-94,4.DOI:10.3969/j.issn.1001-5485.2012.11.020
熵权可拓模型在膨胀土胀缩等级判别中的应用
Application of Extenics Model Based on Entropy Weight to the Classfication of Expansive Soil' s Swell-Shrink Grades
摘要
Abstract
Classification of the shrink and expansion grades of expansive soils is an initial and essential work for engineering construction in expansive soil area. Based on the engineering methods of Extenics theory, five indexes, including free expansion rate, swell-shrink total ratio, the liquid limit, plastic index, and clay particles of less than 0. 005 mm are selected as the factors for comprehensive evaluation of expansive soil. To avoid the impact of subjectivity on weights allocation in traditional method of extenics evaluation index, the entropy theory is employed to calculate the weight aggregation of evaluating factors. An extenics model based on entropy weight is established and applied to the classification of expansive soil samples collected from Xiangyang-Jingzhou expressway. It is shown that the entropy matter-element model is highly reliable and easy-to-operate. The classification results are rational and objectively reflect the complexity of judging the shrink and expansion grades of expansive soils.关键词
物元/可拓理论/熵权/膨胀土/等级判别Key words
matter-element/ extenics theory/ entropy weight/ expansive soil/ grading分类
建筑与水利引用本文复制引用
高卫东,刘永建..熵权可拓模型在膨胀土胀缩等级判别中的应用[J].长江科学院院报,2012,29(11):91-94,4.基金项目
江苏师范大学科研基金(11XLA14) （11XLA14）
