基于BIM技术的山坡地悬臂式挡土墙辅助设计与可视化研究
摘要
本研究以商用软件AutodeskCivil3D2013版为BIM开发平台工具，用山坡地工程常见的挡土墙设计为实例，利用VB.NET程序语言开发一个挡土墙辅助设计工具软件(BIMRW)，利用Civil3D提供的SAC建立自行定义的挡土墙对象模型，直接在Civil3D软件进行挡土墙配置检讨及分析设计工作，并将设计成果输出计算书及设计图。利用BIMRW，可迅速完成方案研讨，节省设计人力，提高营建从业人员生产力。
依据研究结论为：1.建立以Civil3D为BIM应用平台的首要工作为建立定义完善的次组合模型;2.建立在Civil3D平台上的挡土墙设计分析工具，以此软件提供的动态调整及多视图检视的BIM软件特性，大幅简化数据取得、后续输出产制工程图说及设计计算书等工作；3.设计成果以KML文件格式输出展示于Cesium，平面上可定位良好，虽无法与地形高程结合，但可利用其展示细部的构造，利用KML档案发布土木构造物至GIS系统为简便迅速的方法。
本研究实例验证以Civil3D做为平台开发挡土墙分析设计工具的技术，后续完成坡地排水设施、边坡保护设施等坡地土木构造物后，可开发一个BIM架构下的山坡地工程规划设计整合系统。
关键词:BIM；Civil3D；山坡地工程；挡土墙
Abstract
In this study, the commercial software AutodeskCivil3D2013 is used as a BIM development platform tool, and the common retaining wall design of hillside projects is taken as an example. a retaining wall aided design tool software (BIMRW) is developed by using VB.NET programming language, and a self-defined retaining wall object model is established by using SAC provided by Civil3D. the retaining wall configuration review, analysis and design work are carried out directly in Civil3D software, and the design results are output to calculation sheets and design drawings. With BIMRW, the scheme discussion can be completed quickly, the design manpower can be saved, and the productivity of construction employees can be improved.
According to the research conclusions: 1. The first task of building BIM application platform with Civil3D is to establish a well-defined subassembly model; 2. The retaining wall design analysis tool built on the Civil3D platform, with the BIM software features of dynamic adjustment and multi-view view provided by this software, greatly simplifies the work of data acquisition, subsequent output of production engineering drawings and design calculations; 3. The design results are output and displayed in Cesium in KML file format, which can be well positioned on the plane. Although it can not be combined with terrain elevation, it can be used to show the detailed structure. It is a simple and quick method to publish civil structures to GIS system by KML file.
This research example verifies the technology of developing retaining wall analysis and design tools based on Civil3D platform, and can develop a slope engineering planning and design integration system under BIM framework after completing slope drainage facilities, slope protection facilities and other slope civil structures..
Keywords:BIM； Civil3D； Slope engineering; retaining wall
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