Construction Progress & Road Surveying
Today, road construction and upgrading must take into account the subsoil in addition to the location data collected by photogrammetry. This requires exact information about laid cables, water or gas pipes and channels, etc., which can be obtained through investigations with ground penetrating radar. The combination of these technologies helps to optimise the construction effort and coordination and to save costs.
The structural condition of bridges is often deplorable due to the enormous increase in traffic. Bridge inspection is a special case of façade flight. After a combined photogrammetry and lidar inspection of the bridge, including its substructure and surroundings, the basic data has been obtained. The drone can then fly to and from the bridge and document its damage. By using a high-resolution camera and a multispectral system, possible damage can be investigated.
The expansion of the telecommunications network is one of the most important infrastructure projects to ensure the competitiveness of not only the economy. In addition to the routing of the fibre optic cables, the exact alignment of the 5G antennas is a prerequisite for this. For both, drones with photogrammetry and ground penetrating radar provide exact data for the optimal routing and positioning of the antennas.
Not only the German track system is in need of thorough inspection. The track substructure is particularly at risk. Here, the main factors that need to be identified are water ingress and subsided ballast fillings. Here, drone GPR can speed up the work enormously.
A ground penetrating radar enables the electromagnetic depth detection of the soil. Depending on the soil material and depth, valuable information about the subsoil can be obtained. This is information about rocks, groundwater, channels, supply lines such as cables or even unexploded ordnance, etc. Innovative application methods and procedures then transform this data into meaningful (also 3D) models that can avoid time- and cost-intensive planning errors.
More in progress...