CAJ | 학술논문

为了解激光粒度仪法和传统的筛析-沉降法在模型沙粒度测量方面的差异,用这两种方法对几种模型沙样品分别进行了粒度分析.结果表明,激光粒度仪法测试的结果偏粗,分选偏差;上述两种方法获得的平均粒径或分选系数之间均存在显著的线性相关性.激光粒度仪法测定的粗颗粒物质(小于2.184Φ)和细颗粒物质(大于4Φ)比筛析-沉降法偏多.对不同的粒级组分进行了激光法和筛析-沉降法的回归分析,粗颗粒物质相关性好,可以进行数据间的转换.
위료해격광립도의법화전통적사석-침강법재모형사립도측량방면적차이,용저량충방법대궤충모형사양품분별진행료립도분석.결과표명,격광립도의법측시적결과편조,분선편차;상술량충방법획득적평균립경혹분선계수지간균존재현저적선성상관성.격광립도의법측정적조과립물질(소우2.184Φ)화세과립물질(대우4Φ)비사석-침강법편다.대불동적립급조분진행료격광법화사석-침강법적회귀분석,조과립물질상관성호,가이진행수거간적전환.
In this study, on the basis of the grain size analysis using the laser diffract instrument and sieve-pipette methods for several model sediments, the two sets of grain size parameters are compared and the differences between the two methods are analyzed. The results obtained with Mastersizer 2000 show somewhat greater mean size and lower sorting coefficient than those obtained by the sieve-pipette methods. However, the results acquired by the two methods have significant linear relationship between the mean size and sorting coefficient. In comparison with the sieve-pipette analysis, the percentages of the most coarse-grained and fine-grained materials are relatively larger by the laser analysis. The regression analysis in different grain sizes indicates that the coarse-grained materials have better relationship, so it could be utilized for the data conversion between these two methods.