Whilst tunnelling using traditional method, the geologists usually carry out regular “manuals” cutting face mappings using a combination of field observation and pictures. But this method is not optimised as the pictures are not “at scale” and are often distorted and therefore, not representative of the actual geometry of the cutting face.
The new photogrammetric solution Pika allows a true and instant 3D reconstruction model of the tunnel face.
The geologist simply takes a few pictures of the tunnel face, then drops off the images on the Sixense Mapping beMap online platform. A Few minutes later, an ortho-image, a 3D map, a point cloud and a mesh are all made available through beMap.
All those files are a true representation of the reality, for both the geometry and the texture.
With Pika, the geologist therefore has access to:
- The lithology and/or the mineralized veins, with real appearance, size and thickness
- The location and the orientation of the fractures and cracks
- The 2D-3D visualisation of all successive tunnel faces, one after another
- The exact measurement of size, distance and surface of anything on the models
Precision, time saving, data storage: Pika facilitates geologic follow ups of excavation works.