南水北调与水利科技2013，Vol.11Issue(4)：75-78,4.DOI:10.3724/SP.J.1201.2013.04075
渭河陕西段河床沉积物的粒度参数分析
Parameter Analysis on Grain Size Distribution of Streambed Sediment in the Weihe River of Shaanxi Province
摘要
Abstract
Estimation of grain size distribution is of great importance in determination of streambed hydraulic conductivity.In this paper,streambed sediment samples from five study locations including Meixian,Xianyang,Xi'an,Lintong,and Huaxian in the Weihe River were collected.The parameter characteristics of grain size distribution for those sediment samples were analyzed and compared using the Graphical Method of Folk-Ward formula and McManus moment method.The results showed that the average particle diameter and separation coefficient of those sediment samples from the five sites have the same variation but high difference of skewness and kurtosis.Except for the Caotan of Xi'an station,the grain size distribution of streambed sediments from other four sites is in normal distribution based on the graphical method.However,the skewness and kurtosis values calculated by the moment method exceed the predetermined ranges.Comparatively,the graphical method is more suitable for the grain size analysis of streambed sediments in the Weihe River.关键词
渭河陕西段/河床沉积物,粒径分布/图解法/矩法Key words
Weihe River of Shaanxi province/ streambed sediment/grain size distribution/Folk-Ward graphical method/ McManus moment method分类
天文与地球科学引用本文复制引用
宋进喜,于芳,王珍..渭河陕西段河床沉积物的粒度参数分析[J].南水北调与水利科技,2013,11(4):75-78,4.基金项目
国家自然科学基金(51079123) （51079123）
教育部新世纪优秀人才支持计划项目(NCET-11-1045) （NCET-11-1045）
教育部留学科研启动基金(教外司留[2010]1174) （教外司留[2010]1174）
