VERIFICATION AND COMPARISON OF FORMULAS FOR BED LOAD TRANSPORT

作     者：Wang, X.K. Li, D.X. Qu, Z.S. Wang, D.C. 

作者机构：Dep. of Hydraulic Eng. Tsinghua Univ. Beijing 100084 China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2001年第13卷第1期

页      面：8-11页

核心收录：

学科分类：08[工学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：TheprojectsupportedbytheNationalNuturalScienceFoundationofChina(GrantNo.5 9890 2 0 0 ) 

主　　题：Loads (forces) Structural loads 

摘      要：Several typical formulas for bed load transport are examined based on field data. It is concluded that the Einstein formula provides good estimates for the bed load transport rate while other ones predict much lower transport rates. The main reason for the under-prediction is that Dp, the effective diameter of particles, is too large as a representative diameter of the bed material for gravel streams with partially movable bed. Performance of these formulas can be significantly improved if D35 is adopted instead of Dp.