Special vehicles carry out tests / Next destination: Rheinwald.
The Badenova-Wärmeplus project “Erdwärme Breisgau” is picking up speed. In search of geothermal energy in the form of natural hot thermal water resources, three-dimensional seismographic measurements are to be carried out in seven municipalities. The first measurements in the northern Rhine forest of Breisach are planned for the middle of next week.
In order to test the functionality of the electronics settings on the special vehicles beforehand, the first measurements were now carried out on a dirt road in the Gündlingen district. Six so-called impulse vehicles were used near the concrete path to Hochstetten. Field manager Hendrik Birnstiel explained how 3-D seismics work: First, the measuring points are marked with geophones that are inserted into the earth. Geophones are about six inches tall measuring rods that work similarly to microphones. Measured wirelessly. Then three impulse vehicles drive through the measurement area. The convoy stops every 40 meters and uses what is known as a vibrating plate to generate impulses as sound waves underground for three minutes. The geophones pick up the impulses reflected from the various layers of rock in the subsurface. With this measurement, experts can create a very detailed picture of the geological structures down to a depth of around 3000 meters, explained Hendrik Birnstiel. As can be seen from the lettering on the special vehicles, the work is being carried out by a Polish company that takes measurements worldwide.
Last Saturday, the population at the Badenova location in Breisach had the opportunity to have questions about the project answered by experts and to view the unusual special vehicles on site.
The 3-D seismic measurements in Breisach, Merdingen, Freiburg-Munzingen, Schallstadt, Ehrenkirchen, Bad Krozingen and Hartheim should be completed at the beginning of March.
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