Home \ International \ Rosshaupten dam: start of renovation work
Rosshaupten dam: start of renovation work
20/11/2018
Pubblicato da Redazione
The power plant operator Uniper Kraftwerke GmbH commissioned Bauer Spezialtiefbau GmbH to construct a diaphragm wall of 13,500 m² to seal the dam. Special challenges for this project: the diaphragm wall can only be constructed from the 11 m wide, very nar
Rosshaupten, Germany – Located in the idyllic "Koenigswinkel" region between Fuessen, Pfronten and Schwangau in South Germany, the Forgensee lake stretches over an area of about 15.2 km².
It is Bavaria's fifth largest lake and Germany's largest water reservoir by surface area. The reservoir through which the River Lech flows generates electricity and provides flood protection from the water produced from melting snow in the Alps. Completed in the 1950s, the Rosshaupten barrage forms the northern dam of the lake and at the same time provides the inflow for the hydroelectric power plant, generating 45 MW of hydroelectric power from a drop height of 35.4 m.
To prepare the power plant and thus the flood protection for the future, work commenced in May 2018 to improve the dam's watertightness. For this reason, the power plant operator Uniper Kraftwerke GmbH commissioned Bauer Spezialtiefbau GmbH to construct a diaphragm wall of 13,500 m² to seal the dam. Special challenges for this project: the diaphragm wall can only be constructed from the 11 m wide, very narrow dam crest and is not located in the middle of the dam, but unfavorably offset on the side of the dam crest.
In order to be able to carry out the order despite the difficult parameters, the construction of the diaphragm wall will be carried out with the help of an HDS-T turnable hose drum system from Bauer. "Thanks to this specialist expertise, we were able to convince the client and win the contract," said Stefan Jaeger, tender engineer Bauer Spezialtiefbau. "Widening the dam crest can therefore be avoided, which additionally saves on time and costs."
The 1 m wide and 70 m deep diaphragm wall is being constructed in two stages. First the upper 40 m of the dam body will be excavated using a DHG diaphragm wall grab on a Bauer MC 64 duty-cycle crane. The remaining 30 m below the actual dam fill will be removed using a cutter BC 40.2 on a MC 96 duty-cycle crane, because "the natural local bedrock consists of many and often very thin layers of clay stone, marl clay and sandstone," according to Ralf Meyer and Klaus Stauber, both project managers at Bauer Spezialtiefbau.
Another special feature of the project is the guide wall for the execution of the diaphragm wall work. A Mixed-in-Place wall approximately 550 m wide and 8 m deep has already been installed this summer using cast-in-situ concrete casing to ensure optimal guidance of the machines during work. The work on the diaphragm wall by Bauer will also be carried out seven days a week, in day and night shifts, i.e. 24 hours a day, and should be completed in spring 2019.
Ultime notizie di Bauer Macchine Italia
Perforation
18/07/2024
Bauer secures port project in Scottish town of Ardersier
Bauer constructs diaphragm walls up to 42 m deep and anchor...
Perforation
05/12/2023
Bauer relies on full e-power during Dutch infrastructure project
Innovative electric drill rig from Klemm in operation for th...
Perforation
04/11/2023
Bauer India constructs the deepest diaphragm wall element
Bauer India constructs the deepest diaphragm wall element du...
Perforation
27/10/2023
Klemm Bohrtechnik GmbH celebrates double anniversary
This year, Klemm Bohrtechnik GmbH is celebrating two anniver...
Perforation
26/09/2023
Brownfield Remediation from A to Z on Berlin Airport Grounds
Alongside the operations building, they also needed to disma...
Perforation
30/08/2023
Bauer Spezialtiefbau executes foundation works for the world’s largest monopile manufacturing facility for offshore wind
SeAH Wind Ltd. commissioned the Joint Venture between Bauer...
Altri International
International
29/07/2024
100,000th machine: Liebherr sets milestone on its 75th anniversary
It is another milestone in the historyLiebherr-Hydraulikbagg...
International
29/07/2024
KönningKrane takes delivery of Liebherr LTM 1160-5.2
KönningKrane GmbH & Co KG from Stadtlohn in the north-west o...
International
26/07/2024
Exclusive new Cat Track Wear Sensor
Exclusive new Cat Track Wear Sensor provides remote, no-touc...
International
26/07/2024
Tamás és Zsolt Kft. took delivery of Liebherr LTM 1650-8.1
Tamás és Zsolt Kft. has added a Liebherr LTM 1650-8.1 to its...
International
25/07/2024
Cummins opens new powertrain test facility
Cummins has opened a new powertrain test facility to support...
International
25/07/2024
Grove GMK6300L-1 proves perfect for compact jobsite in Rotterdam
Kraanverhuur Boekestijn sent its Grove GMK6300L-1 for city c...