基于数值模拟的团泊新城西区排涝规律研究

Study on the Drainage Law of the West Area of Tuanbo New City Based on Numerical Simulation

根据水系专项规划,天津市团泊新城西区通过设计水系、泵站等设施组成排涝系统,采用传统计算方法确定水系及泵站的规模。本文基于Infoworks ICM建模软件,对团泊新城西区排涝系统方案进行模型校核,设置三种排涝系统空间布局方案进行比选,结合区域用地规划选择最优布局方案。在模型校核过程中,采用不同径流系数进行试验比较,识别其为影响排水防涝模型结果的重要参数,并结合相关规范选用0.55作为模型的最终取值。

According to the special water system planning,the drainage system is composed of water system,pump station and other facilities in the west area of Tuanbo New City,Tianjin,and the scale of water system and pump station is determined by traditional calculation method.Based on the Infoworks ICM modeling software,this paper checks the model of the drainage system scheme in the west area of Tuanbo New City,sets up three drainage system spatial layout schemes for comparison and selection,and selects the optimal layout scheme in combination with the regional land use planning.In the process of model verification,different runoff coefficients are used for test and comparison to identify them as important parameters affecting the results of the drainage and waterlogging prevention model,and 0.55 is selected as the final value of the model in combination with relevant specifications.