Comparing as-built work against underlying 3D models is a crucial step in validating the accuracy of construction work. In the video example provided, geometric control with over- and underbreak is displayed to validate drilling and explosives work for tunnel work. This process involves using large point clouds to compare against IFC/LandXML files to ensure the ongoing work is accurate.
The comparison process can be performed using the “Follow Path” widget, where users can choose their LandXML file to begin. By using this tool, users can quickly and easily identify discrepancies between the as-built work and the underlying 3D models. This helps to identify issues early in the construction process and make necessary modifications to ensure the project meets its requirements.