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根据CAD排水管网工程图纸信息的存储特点,提出了基于CAD工程图纸信息自动构建SWMM水力模型的方法。通过TrueTable软件实现剖面图属性数据到GIS数据库的批量转换,应用自主开发的转换程序自动生成SWMM水力模型的INP输入文件,高效准确地实现SWMM水力模型的构建。该方法在宁波市鄞州区污水管网SWMM水力模型建设中得到了应用,结果表明,该方法可以提高工作效率,属性数据转换的正确率高,能够保证水力模型输入数据的质量。
According to the CAD drainage pipe network engineering drawings information storage characteristics, proposed based on CAD engineering drawings information automatically build SWMM hydraulic model. By using TrueTable software, batch conversion of profile attribute data to GIS database is realized, and the INP input file of SWMM hydraulic model is automatically generated by using a self-developed conversion program to construct the SWMM hydraulic model efficiently and accurately. The method has been applied to the construction of SWMM hydraulic model of sewage pipe network in Yinzhou District, Ningbo City. The results show that this method can improve the work efficiency, and the conversion rate of attribute data is high, which can ensure the quality of input data of hydraulic model.