增从高速公路跨增江大桥对河道流场影响的数值模拟研究  

Numerical Simulation of River Flow Patterns Affected by the Zengcong Highway Bridge acoss the Zengjiang River

作　　者：甘盟[1] 吴飞[1] 

机构地区：[1]广东省水利电力勘测设计研究院,广东广州510635

出　　处：《水资源与水工程学报》2009年第1期146-149,共4页Journal of Water Resources and Water Engineering

摘　　要：增从高速公路垮增江大桥受平面布置和结构技术要求限制,桥墩轴线与水流方向夹角较大。本文用数值模拟的方法对两种桥梁设计方案进行对比研究,通过绘制工程前后的水流流向变化等值线图和流速变化等值线图,分析两种设计方案对河道流场影响的差异,归纳总结出改良方案的优缺点。Restricted by complanate disposal and configuration design of the Zengcong Highway Bridge acoss the Zengjiang River, the angle between the axes of piers and the water flow is bigger. The article uses the method of numerical simulation compared two kinds of design schemes for the bridge. By drawing the isoline figures of flow direction and flow velocity, this paper analyzed the difference between two kinds of design schemes, concluded and summaried the advantages and disadvantages of the perfected schemes.

关 键 词：桥墩 水流流向 河道流场 数值模拟 

分 类 号：TV131.4[水利工程—水力学及河流动力学] U44[建筑科学—桥梁与隧道工程]