【摘要】 在工程设计中应用BIM技术能提高设计效率，当前国内还没有查到结合BIM技术专门用于农田渠道设计的插件。综合考虑农田渠道的过流能力以及抗冻胀设计，结合现行的设计规范针对农田渠道设计开发出较为系统的、操作简单方便、可视化效果好的“渠道设计工具箱”插件，将其添加至Revit界面中，可便工程人员使用以提高农田渠道设计效率。基于Visual Studio2019开发平台使用C#编程语言对Revit2020软件调用API接口进行二次开发，同时对搭建二次开发环境、开发流程、采用函数方法及插件注册进行了初步探索，对常见的梯形、矩形、弧底梯形渠道3种断面结构形式进行了研究。结果表明：根据最佳水力断面的方法计算渠道尺寸参数可以一键生成模型；此外，设计人员能够实时修改渠道的尺寸参数，实现所输入即所得，同时避免了BIM建模工程师反复修改族文件此类繁琐的工作，使农田渠道设计工作十分便利。该插件拓展了Revit软件关于农田渠道设计的计算建模功能，包括水力计算模块、冻深及冻胀量计算模块、抗冻胀设计模块、渠道参数化模型生成模块。通过工程算例验证了插件计算结果的准确性，避免了工程人员的计算误差，实现了快速计算，对渠道进行合理优化设计且生成的模型精度能满足实际工程使用，为农田渠道一体化高效设计提供了新的思路。更多还原

【Abstract】 The application of BIM technology in engineering design can improve design efficiency. At present, there is no plug-in specially used for farmland channel design combined with BIM technology in China. Considering the flow capacity and frost heave resistance design of farmland channels, combined with the current design specifications, we developed a more systematic, easy-tooperate, and good visualization "Channel Design Toolbox" plug-in for farmland channel design, and added it to Revit In the interface,it can be used by engineers to improve the efficiency of farmland channel design. Therefore, based on the Visual Studio2019development platform, this paper uses the C# programming language to conduct secondary development of the Revit2020 software calling API interface. At the same time, it conducts a preliminary exploration of building a secondary development environment,development process, using function methods and plug-in registration. In this paper, three common cross-sectional structures of trapezoidal, rectangular and arc-bottomed trapezoid channels are studied. The results show that the model can be generated with one click by calculating the channel size parameters according to the method of the optimal hydraulic cross-section. Dimension parameters, what you input is what you get, and at the same time, it avoids the tedious work of BIM modeling engineers to repeatedly modify family files, which makes the design of farmland channels very convenient. This plug-in expands the calculation and modeling functions of Revit software for farmland channel design, including hydraulic calculation module, frost depth and frost heave calculation module, frost heave resistance design module, and channel parametric model generation module. The accuracy of the plug-in calculation results is verified through engineering examples, the calculation errors of engineers are avoided, and rapid calculation is realized. It provides a new idea for the integrated and efficient design of farmland channels.更多还原