On behalf of the largest German energy company, we carried out a geological and hydrological investigation of the Kesselberg tunnel on and in the picturesque Walchensee lake. The difficult task was to manoeuvre the submersible JAGO from the GEOMAR Helmholtz Centre for Ocean Research in Kiel into the connecting tube between Walchensee and the hydroelectric power station at Kochelsee. The tunnel itself has a diameter of 4.50 metres, but the iron girders at the entrance are only two metres apart. JAGO has a width of two metres and two centimetres... With jacks and wooden beams, we were able to extend the entrance and send JAGO on its way through the 1,200 metre long tunnel, which was leashed out by our divers early in the morning with a continuous length marker. With heating shirts, dry gloves, scooters and additional breathing gas bottles we were able to take samples of the strange efflorescences that have formed in the tunnel over the past 90 years during the 90 minute dive at four degrees Celsius. The pictures of the previous investigations with diving robots showed insufficient picture quality and only a very limited section of the tunnel wall. The surveyor engineer on this assignment had a panoramic view through the large window of the submersible and could see for himself directly on site that the tube was still in very good condition after such a long time.
"On behalf of the largest German energy company, we carried out a geological and hydrological investigation of the Kesselberg tunnel on and in the picturesque Walchensee lake. The difficult task was to manoeuvre the submersible JAGO from the GEOMAR Helmholtz Centre for Ocean Research in Kiel into the connecting tube between Walchensee and the hydroelectric power station at Kochelsee. The tunnel itself has a diameter of 4.50 metres, but the iron girders at the entrance are only two metres apart. JAGO has a width of two metres and two centimetres... With jacks and wooden beams, we were able to extend the entrance and send JAGO on its way through the 1,200 metre long tunnel, which was leashed out by our divers early in the morning with a continuous length marker. With heating shirts, dry gloves, scooters and additional breathing gas bottles we were able to take samples of the strange efflorescences that have formed in the tunnel over the past 90 years during the 90 minute dive at four degrees Celsius. The pictures of the previous investigations with diving robots showed insufficient picture quality and only a very limited section of the tunnel wall. The surveyor engineer on this assignment had a panoramic view through the large window of the submersible and could see for himself directly on site that the tube was still in very good condition after such a long time." (Translation courtesy of deepl.com)
Das sind wirklich tolle Eindrücke!
Wonderful feats of engineering.
I don't understand German, but I can understand what's going via the pictures.
On behalf of the largest German energy company, we carried out a geological and hydrological investigation of the Kesselberg tunnel on and in the picturesque Walchensee lake. The difficult task was to manoeuvre the submersible JAGO from the GEOMAR Helmholtz Centre for Ocean Research in Kiel into the connecting tube between Walchensee and the hydroelectric power station at Kochelsee.
The tunnel itself has a diameter of 4.50 metres, but the iron girders at the entrance are only two metres apart. JAGO has a width of two metres and two centimetres... With jacks and wooden beams, we were able to extend the entrance and send JAGO on its way through the 1,200 metre long tunnel, which was leashed out by our divers early in the morning with a continuous length marker.
With heating shirts, dry gloves, scooters and additional breathing gas bottles we were able to take samples of the strange efflorescences that have formed in the tunnel over the past 90 years during the 90 minute dive at four degrees Celsius.
The pictures of the previous investigations with diving robots showed insufficient picture quality and only a very limited section of the tunnel wall. The surveyor engineer on this assignment had a panoramic view through the large window of the submersible and could see for himself directly on site that the tube was still in very good condition after such a long time.
@@matthiku Thank you so much. I appreciate you taking the time to help us non-German language watchers.
wie sind denn ungefähr die Dimensionen des Beckens im Wasserschloss?
Ca. 10000 Kubikmeter
"On behalf of the largest German energy company, we carried out a geological and hydrological investigation of the Kesselberg tunnel on and in the picturesque Walchensee lake. The difficult task was to manoeuvre the submersible JAGO from the GEOMAR Helmholtz Centre for Ocean Research in Kiel into the connecting tube between Walchensee and the hydroelectric power station at Kochelsee.
The tunnel itself has a diameter of 4.50 metres, but the iron girders at the entrance are only two metres apart. JAGO has a width of two metres and two centimetres... With jacks and wooden beams, we were able to extend the entrance and send JAGO on its way through the 1,200 metre long tunnel, which was leashed out by our divers early in the morning with a continuous length marker.
With heating shirts, dry gloves, scooters and additional breathing gas bottles we were able to take samples of the strange efflorescences that have formed in the tunnel over the past 90 years during the 90 minute dive at four degrees Celsius.
The pictures of the previous investigations with diving robots showed insufficient picture quality and only a very limited section of the tunnel wall. The surveyor engineer on this assignment had a panoramic view through the large window of the submersible and could see for himself directly on site that the tube was still in very good condition after such a long time."
(Translation courtesy of deepl.com)
This music is great, what is it? It reminds me of HUVA Network.
Irgendwie sehr unheimlich und beklemmend..
Adrenalin 🤩
Kaltes wasser