Home \ International \ Bauer finishes large-diameter boreholes
Bauer finishes large-diameter boreholes
31/05/2017
Pubblicato da Redazione
The remediation project on the former site of the Kesslergrube landfill (perimeter 1/3 northwest) began in late summer 2015. Roche Pharma AG commissioned Bauer Resources GmbH and its environmental
The remediation project on the former site of the Kesslergrube landfill (perimeter 1/3 northwest) began in late summer 2015. Roche Pharma AG commissioned Bauer Resources GmbH and its environmental division Bauer Umwelt, which specializes in contamination remediation, to carry out the work. Bauer Spezialtiefbau GmbH began drilling the large-diameter boreholes for the construction of a secant pile wall in July 2016 and has now nearly completed the project as of early May. A remaining rig will be used to close the last gap in the bored pile wall near the container loading area by the end of May.
First, the large diameter boreholes were drilled using three BG 39 large-scale rotary drilling rigs. Finally, five large-diameter drilling rigs were used to complete the 888 piles for the bored pile wall. The piles were driven into the underlying rock to depths of up to 26.5 m. The pile wall will secure the excavation area hydraulically and structurally while providing a foundation for the construction of a sound-insulated, air-tight enclosure. The excavation of the contaminated soil at the enclosed site will begin in the fall of 2017.
The replacement bores, which average 12.5 m deep and measure 1.5 m in diameter, were already completed by the end of January. They were constructed outside the area of the bored pile wall and ensure that no contaminated soil remains in the ground. The resulting holes were filled with gravel or sand concrete. In total, a 660 m² area was cleaned up by replacing the soil, and some 98,000 tons of non-contaminated and contaminated soil material were removed or excavated. The material was transported by rail for thermal disposal in about 3,666 gas-tight and accident-proof special containers.
“The remediation project has been accident-free so far,” Jochen Kaspar, project manager for Bauer Umwelt, and Tobias Hampel, site manager for Bauer Spezialtiefbau, are proud to report. The drilling work has been carried out with extensive safety precautions as well as measures to ensure occupational safety and control emissions. For example, the workers in the immediate drilling area were equipped with protective suits and an external respiratory air supply. The drilling rigs had a hermetically sealed cab and an independent respiratory air supply from compressed air bottles. Emissions produced by the drilling process were minimized by a borehole extraction system. Using a covered bucket on the wheel loaders, the cuttings were kept securely locked up until they were put in the special containers in the temporary loading facility. While the large-diameter boreholes were being drilled, the containers were transported by truck to the Weil am Rhein rail terminal, were they were shipped by rail to thermal disposal plants in Germany and the Netherlands.
In early 2017, the final groundwater filtration system was incrementally launched in the facility on the pier. As part of the remediation project, contaminated groundwater is being pumped off at three points in the remediation zone of perimeter 1/3 NW of former Kesslergrube landfill. A custom-built, multi-stage groundwater remediation system from Bauer Umwelt removes pollutants such nickel, arsenic, nitrite or polycyclic aromatic hydrocarbons (PAH) from the groundwater. The system can clean around 1,700 m³ of groundwater per day, which can then be routed into the Rhine.
![](/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
![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...
International
24/07/2024
MB Crusher breaks records and crushes challenges
MB Crusher is proud to support the construction of arenas, s...
![Hammer Lifte makes a full load of deliveries of Easy Lift spiders](/storage/2024/06/hammer-lifte-makes-a-full-load-of-deliveries-of-easy-lift-spiders-6681a8913661a.jpg)
International
24/07/2024
Hammer Lifte makes a full load of deliveries of Easy Lift spiders
Easy Lift's Danish dealer, Hammer Lifte, is always busier to...