摘要
本文根据水流连续方程、运动方程和输沙平衡方程,并引入沿程河床相对可动性为常数的假定,获得了冲积河流航道整治线宽度的理论公式。该公式能较好地反映黄河下游,长江荆江河段等天然河流沿程宽度和深度相互关系的实际,也能与赣江、北江等河流整治前后河床断面形态调整相吻合,并为水糟试验资料所证实,可应用于沙质和卵石河床航道整治工程的设计。
Based on the equation of continuity and equation of motion for the river current and its equilibrium equation of transport and deposition, this paper gives the theoretical formula in determining the regulatng width for an alluv ial river, in which the relative movability of river bed along the course is supposed to be constant.This formula has been well verified in the relationship of width and depth along the downstream of Yellow River and in some reaches along Jinjiang, a main tributary of the Yangtze Rives. Moreover , it is also coincident with the cross-sectional views of the river bed along Ganjiang and Beijiang before and after regulation. They are all verified by the movable bed modei tests.So, this formula might be helpfnl to be used in the design of regulation of a river channel with sand bed or pebbly bed.
出处
《水运工程》
北大核心
1991年第5期21-26,共6页
Port & Waterway Engineering
