商合杭铁路芜湖长江大桥通航条件及水动力影响试验研究  

Experimental study on navigation condition and hydrodynamic influence of the Wuhu Yangtze river bridge in the Shang-He-Hang railway

作　　者：陈述[1] 张世钊[2] 赵维阳 夏云峰[2] 

机构地区：[1]中铁大桥勘测设计院集团有限公司,武汉430050 [2]南京水利科学研究院港口航道泥沙工程交通行业重点实验室,南京210024 [3]长江航道规划设计研究院,武汉430000

出　　处：《水道港口》2018年第1期49-54,共6页Journal of Waterway and Harbor

基　　金：国家重点研发计划(2016YFC0402107);江苏省水利科技项目(2015004)

摘　　要：当河道受到自然或人为因素影响而改变局部边界条件时,水流运动将会发生变化,并进一步引起河床的冲淤调整。桥梁兴建后在一定范围内会造成水动力条件改变,引起局部河床冲淤调整,对工程河段通航条件带来一定程度的影响。以商合杭铁路芜湖长江大桥的兴建为例,利用建立的物理模型,对桥址河段水流运动特性进行试验分析,模拟建桥后对工程河段水动力及通航条件的影响。结合试验对桥式方案进行优化,对方案通航条件的影响及适应性进行了分析,为桥梁设计提供参考。When the local boundary conditions of the channel are changed causing by the natural or human factors,the flow dynamic will change correspondingly,and it will cause a further adjustment of the riverbed. After the construction of the bridge,hydrodynamic conditions are also changed within a certain range,and the adjustment of local riverbed erosion and deposition will occur,which will bring a certain degree of influence on navigation condition of engineering reach. Taking the construction of the Wuhu Yangtze river bridge in the Shang-He-Hang railway for example,by using the established physical model,the hydrodynamic characteristics at the bridge site was analyzed in this paper,and the influence of bridge construction on the flow dynamic and navigation condition of engineering reach was simulated. Combining with the optimization scheme test, the influence of navigation condition and adaptability analysis of the scheme were also discussed. It provides reference for bridge design.

关 键 词：桥梁工程 河工模型 水动力 通航条件 

分 类 号：TV143[水利工程—水力学及河流动力学]