南水北调与水利科技2017，Vol.15Issue(3)：164-170,7.DOI:10.13476/j.cnki.nsbdqk.2017.03.027
顺河跨海大桥工程对河道影响数值分析
Numerical analysis on the influence of sea-crossing bridge engineering on river courses
摘要
Abstract
Given that the construction of sea-crossing bridges may have adverse effects on rivers, a plane two-dimensional hydrodynamic numerical model was established. The model was tested and proven to be valid w ith the measured data of tide water, and was used to an-alyze the effects of the engineering on the rise of water level, the changes of flow regime, as well as the depth of riverbed scour. The study indicated that the sea-crossing bridge engineering w ill cause a slight rise in the backwater heightof the rivers. The maximum back-water height is only 6 cm. But the flow regime w ill vary greatly as numerous vortices w ill emerge at the vicinity of the bridge location. These influences w ill result in local scour of the riverbed, and the maximum scour depth is 0. 83 m.关键词
跨海大桥/数值模拟/壅水高度/流态/冲刷Key words
sea-crossing bridge/numerical simulation/backwater height/flow regime/scour分类
建筑与水利引用本文复制引用
金相楠,孙冬梅,冯平..顺河跨海大桥工程对河道影响数值分析[J].南水北调与水利科技,2017,15(3):164-170,7.基金项目
海河干流河网水量水质综合调控数学模拟技术(2014ZX07203-009-03-01) （2014ZX07203-009-03-01）
国家自然科学基金(51438009) Mathem atical Simulation T echnology for Comprehensive Regulation of Water Quantity and Water Quality of River Netw ork of H aihe River Mainstream (2014ZX07203-009-03-01) （51438009）
National Natural Science Foundation of C hina (51438009) （51438009）
