激光法与密度计法颗粒级配回归模型的建立  

The Establishment of Regression Model for Granulometric Grading of Laser and Densimeter Methods

作　　者：赵寿刚[1,2] 吴然[3] 陈小林[3] 

机构地区：[1]水利部堤防安全及病害防治工程技术研究中心,郑州450003 [2]黄河水利科学研究院,郑州450003 [3]天津工程师范学院,天津300222

出　　处：《中国农村水利水电》2009年第6期105-108,共4页China Rural Water and Hydropower

基　　金：科技部公益性科研院所长基金资助项目(HKY-JBYW-2007-25)

摘　　要：激光法和密度计法是两种原理不同的颗粒分析试验方法,密度计法是土工试验规程规定方法,而激光法具有快速、方便的优势。分别利用激光法和密度计法进行大量各种土质颗粒分析对比试验,并建立了两种试验方法之间的转换模型,比较分析了支持向量机法和多项式拟合法回归方程的精度,总体上支持向量机法要优于最小二乘多项式拟合法。转换模型的建立为激光法在土工颗粒分析试验中的应用提供技术支撑。laser and densimeter methods are two different principle experimentation methods for granulometric analyses. The densime- ter method is included in specification of the soil test. The advantage of the laser method is convenience. The comparative experiment of soil granulometrie analysis is made by the laser and densimeter methods. And the regression models are established by the support vector machine method and the least square conic fitting method. The support vector machine method is better than the least square conic fitting method. The establishment of regression model lays a technological foundation for the application of the laser method in the granulometric experiment.

关 键 词：激光法 密度计法 回归模型 支持向量机法 多项式拟合法 

分 类 号：P333[天文地球—水文科学]