摘要
为分析行洪区内道路建设工程对行洪区的影响,文章以S209明光段改建工程与明光市泊岗淮河公路大桥为实例,采用MIKE21模型模拟行洪区设计行洪条件下工程建设前后水位、流速和进退洪历时等变化情况。模拟结果表明:工程建设前后,行洪区内水位变化较小,平均水位增幅范围为0.08~0.12 mm;行洪流速无明显变化,平均流速约0~1.2 m/s;行洪区内的水流扩散型式为漫流,整体流速较小,流场无明显变化,对整体进退洪时间没有明显影响,该道路工程的建设对行洪区的行洪无明显不利影响。
In order to analyze the impact of road construction projects within flood discharge areas,this paper takes the reconstruction project of the S209 Mingguang section and the Mingguang City Bogang Huaihe River Highway Bridge as examples,and uses MIKE21 model to simulate the changes in water level,flow velocity,and flood inundation duration before and after the construction of the project under the designed flood discharge conditions.The simulation results indicate that before and after the construction of the project,there was a small change in water level within the flood discharge area,with an average increase in water level ranging from 0.08 to 0.12 mm;there was no significant change in flood discharge flow velocity,with an average flow velocity of approximately O to 1.2 m/s;the flow diffusion pattern within the flood discharge area was overflow,with a generally low flow velocity,no significant changes in the flow field,and no significant impact on the overall flood inundation time,the construction of this road project has no significant adverse impact on flood discharge in the flood discharge area.
作者
产华东
王俊
姚振兴
CHAN Huadong;WANG Jun;YAO Zhenxing(Anhui Tianze Geological Mining Technology Co.,Ltd.,Hefei 230022,China;Anhui Transport Survey and Design Institute Co.,Ltd.,Hefei 23001l,China)
出处
《安徽水利水电职业技术学院学报》
2025年第2期15-19,31,共6页
Journal of Anhui Technical College of Water Resources and Hydroelectric Power
关键词
行洪区
数值模拟
MIKE21
水位变化
流速变化
flood discharge area
numerical simulation
MIKE21
water level change
velocity change
