自20世纪70年代起,美国等发达国家开始利用数学模型模拟城市地表径流对降雨事件的响应过程,用于城市防洪规划和管网的优化。我国城市排水管网的数字化研究起步较晚,但也已经取得了一些成果。近年来,关于是否应该使用计算机软件来模拟城市排水系统的水文水力及管网运行状态这一话题,业内人士众说纷纭,支持和反对的声音此起彼伏,各类免费和收费的模拟软件也被众人评判,说法不一,可谓迷雾重重。 Since the 1970s, developed countries such as the United States began to use mathematical models to simulate the process of urban surface runoff response to rainfall events, which are used for urban flood control planning and pipe network optimization. The digitalization of urban drainage network in our country started later, but some achievements have been made. In recent years, many people in the industry have different opinions on whether to use computer software to simulate hydrology, hydraulics and pipe network running status of urban drainage systems. The voices of support and objection come one after another and all kinds of free and fee-based simulation software are also judged by people. Different opinions can be described as foggy.