模糊数学对湖南膨胀土分类与判别实际工程应用研究

Practical Application of Fuzzy Mathematics into Classification and Judgement of Expansive Soil in Hunan

正确识别膨胀土和非膨胀土,是准确选定勘察、试验方法以及确定合理设计、施工方案的首要问题.通过李生林、刘特洪、邓家喜三种模糊数学的综合评判法对潭邵高速公路和常张高速公路膨胀土评判的对比研究可以看出,其评判结果与现有分类法标准所得分类等级相符,采用不同的分类因子,评判值虽然略有不同,但相差不大,说明多因子模糊数学判别膨胀土的科学性和合理性.

Identification of expansive soil and unexpansive soil is the prime problem in the geologic survey, test method, designning and counstruction. By comparing with the three results got by Li Shenglin, Liu Tehong and Deng Jiaxi who used fuzzy mathematics in classification of expansive soil in Tan - Shao railway and Chang - Zhang railway, we can find the results are the same to the standard now used to classification of expansive soil. The results had a little difference when we used different classification indexes, but the difference was not very big. So it shows that it is scientific and rational to classify the expansive soil by some classification indexes.