二维泥沙数学模型在赣江大堤南昌段改线中的应用  

Application of 2-D sediment mathematical model in riverside relocation of Nanchang reach of Ganjiang dike

作　　者：陈界仁[1] 唐洪武[2] 

机构地区：[1]河海大学水文水资源及环境学院,江苏南京210098 [2]河海大学水利水电工程学院,江苏南京210098

出　　处：《水利水运工程学报》2002年第3期32-37,共6页Hydro-Science and Engineering

摘　　要：采用平面二维水流泥沙数学模型计算了赣江大堤南昌段堤线改线对河段水流运动及河床冲淤的影响 .在运用实测资料对该数学模型进行河段水面线、断面流速分布、汊道分流比和河床冲淤分布验证的基础上 ,计算了堤线改线工程前、后的河段洪水水位壅高、断面流速分布变化。By using a 2-D sediment mathematical model, influences of riverside relocation of Nanchang reach of Ganjiang River on flow, scouring and silting were computed. Based on the verification of the mathematical model with water surface, velocity distribution in a section, discharge ratios in the bifurcation reach, distribution of scouring and silting by site measured data, damming of flood water level, variation of velocity distribution in a section, and silting in the borrow areas in the reach before and after the relocation work were calculated.

关 键 词：堤线改线 二维泥沙 数学模型 验证计算 

分 类 号：TV14[水利工程—水力学及河流动力学]