灰色关联分析工程类比法在膨胀土判别与分类中的应用  

Application of Grey Correlation Analysis and Engineering Analogy in the Identification and Classification of Expansive Soil

作　　者：周诗坤 唐继 凌晓宇 ZHOU Shi-kun;TANG Ji;LING Xiao-yu(River and Lake Protection and Construction Operation Safety Center of Changjiag Water Resources Commission,Wuhan 430010,China)

机构地区：[1]长江水利委员会河湖保护与建设运行安全中心,湖北武汉430010

出　　处：《云南水力发电》2023年第9期109-112,共4页Yunnan Water Power

摘　　要：在岩土工程设计中,工程类比法应用广泛,并占有重要地位。选择易于获取的表征膨胀土特性的自由膨胀率、液限、塑性指数、标准吸湿含水率、<0.002mm胶粒含量共5个因素作为定量类比指标,运用基于灰色关联分析的定量类比方法对膨胀土进行判别与分类,并以合肥-六安-叶集高速公路沿线各标段17个典型土样的判别分类为例,介绍了该方法的应用。In geotechnical engineering design,the engineering analogy method is widely used and holds an important position.In this paper,five factors,namely,Free expansion rate,liquid limit,plasticity index,standard moisture absorption rate and<0.002mm colloidal particle content,which are easy to obtain to characterize the characteristics of expansive soil,are selected as quantitative analog indicators.At the same time,it uses a quantitative analogy method based on grey correlation analysis to distinguish and classify expansive soil.Taking 17 typical soil samples from various sections along the Hefei-Lu'an-Yeji Expressway as examples,the application of this method is introduced.

关 键 词：工程类比法 膨胀土 判别与分类 灰色关联分析 

分 类 号：TU443[建筑科学—岩土工程]