浑河新立堡桥防洪影响评价计算与分析

Flood control evaluation and analysis for Xinlibao bridge in Hun-River

结合浑河新立堡桥所在位置,确定计算范围与条件,利用河道一维恒定流模型对建桥前后壅水高度及影响范围进行计算。根据计算结果,分析了50年一遇、100年一遇和300年一遇标准洪水时,建桥后水位最大壅高值、桥前水位、影响范围以及左右岸堤防布设,并采用物理模型实验成果进行了验证与分析,结果符合实际情况,可作为建桥后两岸堤防建设的可靠依据。

Based on the geographic location of Xinlibao bridge in the Hun-River,range and conditions of calculation were determined,one-dimensional steady flow was used to calculate backwater height and scope. According to the calculation results,under the condition of the 50-year,100-year,and 300-year return period flood standard,the maximum water level after the bridge obstruct high value,the bridge water level,the scope of both banks and dikes were analyzed,which were verified by physical model experiment results. Finally,the impact assessment of flood control was also analyzed due to the construction of the bridge in Shenyang City.