宽级配河床平面二维泥沙数学模型的几个问题  

Discussion on 2-D Math Model of Sediment in Gravel Dominantly Riverbed

作　　者：渠时勤[1] 黄中木 

机构地区：[1]重庆交通学院,重庆400074 [2]重庆市重大水电项目前期工作办公室,重庆400015

出　　处：《重庆建筑大学学报》2001年第5期27-31,共5页Journal of Chongqing Jianzhu University

基　　金：重庆市科委资助项目 (98- 0 0 9)

摘　　要：对平面二维泥沙数学模型的几个关键问题 :挟沙力系数、恢复饱和系数、床沙级配调整、冲淤厚度和床沙‘归一化’等问题及其相互影响作初步探讨。这种讨论仅限于山区天然河流宽级配河床情况。以上问题在两种底沙不同的河流上应用 。The present paper gives a discussion about transport coefficient of suspended sediment, coefficient of saturation recovery, riverbed sediment grading, deposition/scour thickness and normalization of the sediment composition in gravel dominantly riverbed. The math model above mentioned has been tested in two rivers with different riverbed sediment composition and a rather good agreement has been obtained.

关 键 词：天然河道 河床泥沙 平面二维泥沙 数学模型 挟沙力 

分 类 号：TV146[水利工程—水力学及河流动力学]