基于Mike Urban模型的排涝模数复核计算分析

Check Calculation and Analysis of Flood Discharge Modulus Based on Mike Urban Model

洪涝灾害是人类社会发展的重大威胁。在社会经济快速发展的城市地区,暴雨径流难以自排,往往需要修建排涝泵站辅助排涝。排涝模数是确定排涝流量的主要因素,因此,合理确定排涝模数对于降低涝灾损失有重要意义。以江西省景德镇市新厂排涝泵站为例,先用逐时水量平衡法计算该泵站的排涝流量,再应用城市管网模型Mike Urban对其进行复核,两种方法计算所得到的排涝模数非常接近,可以相互佐证,工程最终采用了Mike Urban模型计算结果。采用的计算方法可为城市地区排涝泵站排涝模数的计算提供参考。

Flood disaster are a major threat to the development of human society-. In urban areas with rapid development of socio-economic, the storm runoff is difficult to self-discharge, and it is often necessary- to construct drainage pumping stations to assist drainage. The drainage modulus is the main factor determining the drainage flow. Therefore, it is important to determine the drainage modulus reasonably to reduce the disaster loss. Taking the Xinchang Drainage Pumping Station of Jingdezhen City-, Jiangxi Province as an example, the pumping flow of the pumping station is calculated by the hourly water balance method, and then the urban pipe network model Mike Urban is used to review it. The two methods are used to calculate the obtained drainage mode. The numbers are very- close and can be mutually corroborated. The project finally uses the calculations of the Mike Urban model. The calculation method used can provide reference for the calculation of the drainage modulus of the pumping station in urban areas.