南京大胜关长江大桥桥位水文设计论证分析  

Bridge Site Hydrologic Design and Analysis for High-Speed Railway Bridge of Nanjing Dashengguan Yangtse River

作　　者：郑大为[1] 张敏[2] 雷俊卿[1] 

机构地区：[1]北京交通大学土木建筑工程学院 [2]中铁大桥勘测设计院有限公司,武汉430050

出　　处：《北京交通大学学报》2007年第4期83-88,共6页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家自然科学基金资助项目(50178004)

摘　　要：桥梁桥位的选择,对桥梁的建设和运营至关重要.文中分析了桥位处河段河床冲刷和水流变化对桥墩基础的影响,利用流体力学原理,给出模拟计算方法.结合南京枢纽高速铁路越江大桥方案的工程应用实例,进行了冲刷计算与水文设计,得出南京枢纽高速铁路越江大桥的初步论证的可行性方案.Selection of bridge site is of crucial importance to construction and transport operation of the bridge, therefore, it deserves careful study. The influence of river-bed scouring and current variable on the foundation of bridge piers has been analyzed by using an analogy calculation method which derives from fluid mechanics principle. The project of Nanjing Yangtse River High Speed Railway Bridge is taken as an example. And after calculation of scouring and hydrologic design, the preliminary feasibility scheme of Nanjing Yangtse River Railway Bridge is proposed.

关 键 词：南京枢纽 越江大桥 水文设计 一般冲刷 局部冲刷 数值模拟计算 

分 类 号：U442[建筑科学—桥梁与隧道工程]