苏州河干流防洪水位的数值计算

利用一维河网模型系统MIKE11建立苏州河水系水文模型和河网水动力模型,模型率定结果表明,干流模拟水位与实测结果非常吻合,所建模型可以准确反映苏州河水系的水动力条件.考虑上游洪水位、区间暴雨和下游高潮位遭遇的不利组合,进行苏州河干流最高防洪水位的数值计算,计算结果可为苏州河环境综合整治二期工程———防汛墙的改造提供科学依据.

Numerical computation of flood control level for Suzhou Creek

A hydrological and hydrodynamic model for river network of Suzhou Creek was established by use of MIKE11.The calibrated results show that the simulated water level for the mainstream agrees with the measured data very well.Therefore,the model developed is effective for simulation of the hydrodynamic characteristics of Suzhou Creek.Then,the maximal floodcontrol level of Suzhou Creek was simulated under disadvantageous combination of upstream flood level,local storm,and downstream high tide.The simulated results are accurate and reliable,and can provide a scientific basis for rebuilding of flood prevention wall in phase II of Suzhou Creek regulation project.