A BIM for underground applications that includes details on both above and below-ground facilities would aid in better preparation and risk analysis.
FREMONT, CA: There is a scarcity of data and knowledge on subsurface conditions, such as current buried structures, such as pipes, groundwater, and geology. This lack of knowledge may have a significant effect on potential urban underground space planning and development activities to preserve, restore, update, and add new buried infrastructure. Furthermore, the subsurface ecosystem is typically unstable, and submerged infrastructure routes and conditions are typically not apparent. These facts can be due to a lack of subsurface space preparation and control—a valuable tool for demonstrating information on buried infrastructure and ground conditions in conjunction with above-ground information. A Building Information Model (BIM) for underground applications has been suggested to achieve these goals.
Many new buildings come with an as-built model that includes structural and design details. Most BIMs, on the other hand, lack knowledge on the subsurface ground conditions or buried infrastructure in the building's vicinity. As a result, a BIM for underground applications that includes details on both above and below-ground facilities would aid in better preparation and risk analysis.
The proposed modeling environment can address BIM's lack of detailed 3D representations and problems with tools such as GIS, which are mainly used for large-scale spatial applications. The proposed model would also be a good fit for a specific advanced modeling environment that is currently being created. Building models can be enhanced with buried infrastructure data gathered from mapping surveys to generate a 3D image of both surface and subsurface physical infrastructure. However, geological and ground conditions must be included in the model to construct a full BIM that includes underground details.
Ground investigations of the site and its surroundings will provide this geological detail. Borehole data can be transformed into a three-dimensional geological model. 3D geological models, on the other hand, are an approximation of discrete position data, and the final model is usually created by professional geologists and geotechnical engineers. As a result, it is critical to comprehend specific model characteristics rather than taking them as absolute facts. If the models are to be used by future engineers, the judgment and knowledge captured in geological ground models or BIMs into which they are incorporated may be instrumental. However, this incorporation is not currently carried out.
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