摘要
随着各种原理粒度仪的广泛使用,有必要在相同条件下,对不同测量方法的泥沙粒度级配测定结果进行对比分析,从而确定相关关系。本文精心挑选具有代表性的50个较细泥沙样品分别用吸管沉降法和激光衍射法进行泥沙粒度分析。结果表明:激光法的测试结果相对偏粗,而且是泥沙粒径越细偏差越大,经过两种方法粒度级配线性相关性分析发现,二者的相关系数R较高,为0.9959,分析还表明,其回归方程是有意义的,可作为三门峡测区换算公式使用。
With the widespread use of particle size analyzer,it is necessary to compare the sediment particle size grading results with different measuring principles and methods under the same conditions so as to determine the correlation.The paper selected the representative 50 samples by using pipette settling method and laser diffraction method to do the sediment size analysis respectively.The results indicated that the laser diffraction method was relatively coarse,the finer the sediment particle size,the more the deviation,through the correlation analysis for these two methods,both correlation coefficients are 0.9959.It also proved that the regression equation was meaningful,which can be used as conversion formula in Sanmenxia area.
出处
《水资源与水工程学报》
2011年第2期161-163,共3页
Journal of Water Resources and Water Engineering
关键词
激光法
吸管法
颗粒粒度分析
相关性
Laser method
suction method
particle size analysis
relevance
