Home \ International \ Construction site turned upside down
Construction site turned upside down
30/03/2020
Pubblicato da Redazione
Underground construction method at the Thomas-Wimmer-RIng in Munich
With approx. 390,000 commuters, the Bavarian capital is Germany’s top commuter city. The results are growing congestion, overcrowded trains, and a shortage of parking areas. To counteract the extreme lack of parking, an underground parking garage is being constructed right under the Altstadtring, at the eastern part of the ring road in the center of Munich, between Isartor and Maximilianstraße. Dimensions: 140 m long, 30-45 m wide, 13 m deep.
To ensure continued traffic flow on two lanes during the construction phase and let 25,000 cars pass by the site with as little congestion as possible, the site has been divided up into two sections: East and West. The resulting two, extremely narrow sites within confined areas make for a real challenge. Bauer Umwelt, the environmental business division of Bauer Resources GmbH, was tasked with the excavation of both building pits. But before excavation could begin, Bauer Spezialtiefbau GmbH erected a pile wall with a diameter of 88 cm. The wall acts as a protective structure for the excavation pit and is also the protective outer shell of the future underground garage.
In November 2017, excavation of the pit on the eastern side – with a volume of 40,000 m3 and a depth of up to 13 m – finally commenced. After completion of the eastern construction section in 2018, work on the western area began in the spring of 2019. But everything is different with this section, the site is literally turned upside down. The reason: The foundations of the adjacent neighboring building are too close to the excavation pit, and a tie back of the pile wall that would anchor it to the ground is not possible. Therefore, an underground construction method is used whereby the first lower level is mounted to the pile wall, so the shell is created from the top down.
“The capping beam of the first lower level with an area of around 2,700 m2 and consisting of six concrete sections was completed over the winter months. Now the excavation can be done underground,” explains Christian Heinig, foreman at the environmental business division Bauer Umwelt of Bauer Resources GmbH. Using a mini digger, a tunnel construction digger and a caterpillar, a total of 18,000 m3 of soil are brought to the surface. The entire soil excavation in the west amounts to approx. 28,000 m3. The cramped spatial conditions are of particular difficulty in the mining method. In some sections, the room height is just 4 m and only five employees can work here at the same time. “That’s why the planning and implementation of the underground excavation in the western section is regarded as one of the most spectacular building projects in Germany,” according to Thomas Reinthaler, Sales Manager for the south region of Bauer Umwelt, the environmental business division of Bauer Resources GmbH.
The work executed by Bauer is expected to be completed according to schedule by September 2020. From spring 2021, 520 vehicles will be able to find a parking space on three levels.
![](/storage/aziende/14849901962775.jpg)
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...
![Bauer relies on full e-power during Dutch infrastructure project](/storage/2023/12/bauer-relies-on-full-e-power-during-dutch-infrastructure-project-656dc6f86eda6.jpg)
Perforation
05/12/2023
Bauer relies on full e-power during Dutch infrastructure project
Innovative electric drill rig from Klemm in operation for th...
![Bauer India constructs the deepest diaphragm wall element](/storage/2023/10/bauer-india-constructs-the-deepest-diaphragm-wall-element-653e584febe60.jpg)
Perforation
04/11/2023
Bauer India constructs the deepest diaphragm wall element
Bauer India constructs the deepest diaphragm wall element du...
![Klemm Bohrtechnik GmbH celebrates double anniversary](/storage/2023/10/klemm-bohrtechnik-gmbh-celebrates-double-anniversary-6533bbdb9ca06.jpg)
Perforation
27/10/2023
Klemm Bohrtechnik GmbH celebrates double anniversary
This year, Klemm Bohrtechnik GmbH is celebrating two anniver...
![Brownfield Remediation from A to Z on Berlin Airport Grounds](/storage/2023/09/brownfield-remediation-from-a-to-z-on-berlin-airport-grounds-650d904012be8.jpg)
Perforation
26/09/2023
Brownfield Remediation from A to Z on Berlin Airport Grounds
Alongside the operations building, they also needed to disma...
![Bauer Spezialtiefbau executes foundation works for the world’s largest monopile manufacturing facility for offshore wind](/storage/2023/08/bauer-spezialtiefbau-executes-foundation-works-for-the-worlds-largest-monopile-manufacturing-facility-for-offshore-wind-64e0b38f3aef3.png)
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
![100,000th machine: Liebherr sets milestone on its 75th anniversary](/storage/2024/07/100000th-machine-liebherr-sets-milestone-on-its-75th-anniversary-66a4882ac8547.jpg)
International
29/07/2024
100,000th machine: Liebherr sets milestone on its 75th anniversary
It is another milestone in the historyLiebherr-Hydraulikbagg...
![KönningKrane takes delivery of Liebherr LTM 1160-5.2](/storage/2024/07/konningkrane-takes-delivery-of-liebherr-ltm-1160-52-669f9a5f379f9.jpg)
International
29/07/2024
KönningKrane takes delivery of Liebherr LTM 1160-5.2
KönningKrane GmbH & Co KG from Stadtlohn in the north-west o...
![Exclusive new Cat Track Wear Sensor](/storage/2024/07/exclusive-new-cat-track-wear-sensor-669f9e20ae70c.jpg)
International
26/07/2024
Exclusive new Cat Track Wear Sensor
Exclusive new Cat Track Wear Sensor provides remote, no-touc...
![Tamás és Zsolt Kft. took delivery of Liebherr LTM 1650-8.1](/storage/2024/07/tamas-es-zsolt-kft-took-delivery-of-liebherr-ltm-1650-81-6688f18bdc18d.jpg)
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...
![Cummins opens new powertrain test facility](/storage/2024/07/cummins-opens-new-powertrain-test-facility-669f9c6a4b904.jpg)
International
25/07/2024
Cummins opens new powertrain test facility
Cummins has opened a new powertrain test facility to support...
![Grove GMK6300L-1 proves perfect for compact jobsite in Rotterdam](/storage/2024/07/grove-gmk6300l-1-proves-perfect-for-compact-jobsite-in-rotterdam-6683b901e94d4.jpg)
International
25/07/2024
Grove GMK6300L-1 proves perfect for compact jobsite in Rotterdam
Kraanverhuur Boekestijn sent its Grove GMK6300L-1 for city c...