An unusual sight in Stuttgart: the otherwise busy Heslach Tunnel on the B14 - completely empty. No traffic jams, no vehicles, no movement. But anyone who thinks the tunnel is closed on this day is wrong: instead of cars, state-of-the-art measurement technology was in use.
Surveying under extreme conditions
Up to 50,000 vehicles use the Heslach Tunnel every day - a central traffic artery in the middle of Stuttgart. This made the opportunity for the Hemminger team to enter this busy tunnel completely undisturbed for high-precision measurement work all the more extraordinary.
On behalf of safety, our surveying experts carried out settlement measurements using a Fine leveling systems from Leica Geosystems through. The aim was to detect changes to the tunnel structure at an early stage and to identify potential Deformations to be documented. These measurements were not only taken in the main tunnel, but also in the parallel rescue tunnel - because absolute safety must be ensured there too. Security be guaranteed.
Why settlement measurements are so important
Tunnel structures are subject to permanent loads: Traffic, vibrations, underground water flow and geological changes have a continuous effect on the structure. Regular Settling measurements are therefore essential in order to detect the smallest movements or material changes in good time. This is the only way to prevent damage at an early stage and ensure long-term stability.
Technology, precision and responsibility
The measuring devices used from Leica Geosystems, a part of Hexagon, guarantee maximum accuracy and reliability - even under difficult conditions such as in a tunnel. But technology alone is not enough: Experienced specialists are needed to interpret the measurement data correctly and place it in its structural context. This is exactly what Hemminger stands for - with decades of experience in engineering surveying.
Result: Safety through precision
The operation in the Heslach Tunnel is an example of how surveying works behind the scenes - but is indispensable. Safety starts in the millimeter rangeand it is precisely this precision that we achieve every day with passion and responsibility.