Underground engineering is often decisive with regard to the course of the rest of a construction project. Many factors are included in the planning, for example misshapen or sloping terrain, adjoining building structures, difficult access and exit routes, or irregular features of the subsurface.
Particularly in the case of such subsurfaces and an uneven surface terrain, the recording and calculation of the excavated earth are decisive, because they are a significant cost factor. The less earth and material has to be excavated or moved, the quicker and cheaper the construction project.
By means of laser scanning, the construction site can be fully recorded in three dimensions quickly and easily. The resulting point cloud is the basis for the exact calculation of the excavated earth or for planning the foundations. Repeated measurement during the construction process also creates end-to-end documentation, for example to detect deformations during tunnel construction.