3D construction models
3D basic construction models ("BIM")
The "Building Information Modeling" (BIM) working method is becoming increasingly important in project management. Most construction projects affect the subsoil. This means that the subsoil is part of the overall BIM model. The subsoil is visualized as three-dimensional digital models that are implemented in the overall model. This makes it possible to make the use of subsoil information more efficient and transparent for all parties involved. The existing, predominantly analogue subsoil data must first be digitized using suitable software and summarized and interpreted in subsoil models. For this purpose, we use the "Leapfrog Works" program from Seequent, which was designed especially for construction projects. By using the programs available to us, loss-free data export for other project partners is possible without any problems.
It is not practicable to create a single ground model with all the information. Various sub-models are therefore usually created, for example
- Digital terrain model (DTM)
- Soil layer model / homogeneous area model / drilling profiles
- Hydrogeological model
- Suspected explosive ordnance model
- Model with suspected contaminated sites
- Model for components in the building ground / known obstacles
A digital terrain model (DCM) is required as the upper model boundary for creating the subsoil layer model. As with the analog model, the quality of the digital subsoil model depends largely on the scope of the subsoil information. The conversion of the individual point-based subsoil information into a complex spatial layer model must not be carried out solely by the automatic meshing of the software. It must be checked with engineering geology expertise and adapted taking geological relationships into account.
The attribution of the individual objects is important for further planning in the context of BIM. These can then be viewed and used by all trades involved. Data is usually transferred via an IFC interface.
Contact person
Dipl.-Geol. Dr. Martin Brodbeck
Managing Partner,
Hydrogeology and engineering geology
Brodbeck(ät)smoltczykpartner.de