Vienna Chamber System

from Wikipedia, the free encyclopedia

The Vienna Chamber System is a construction method for sealing landfills . It was developed in Vienna in the 1990s .

functionality

The Viennese chamber system is based on a side seal with two tight sheet pile walls running parallel to each other at a distance of about 5 meters , the space between them being divided into individual chambers every 50 m by partition walls. These can be connected to one another by bulkheads . Then a level is set in each chamber at which the water level is permanently kept at least half a meter lower than the external groundwater .

The methodology is particularly suitable for the remediation of contaminated sites in which no or according to the current state of the art inadequate soil sealing has been created. With sealing walls built into the chamber system at a later date, the entry of pollutants into the surrounding groundwater body can be prevented.

The advantage of the construction is that the construction can be designed as a narrow wall, which is very cost-effective and technically easier than high-density combination seals. It also fulfills the wish to be able to monitor the functionality of the system. On the one hand you can permanently check the pollutant content in the landfill water, and on the other hand you can check the tightness of the walls by sealing off . The pump water is usually collected again in the landfill or fed back (for example by raining over a recultivated area), or can be fed to further post-treatment.

Individual evidence

  1. ↑ a b Federal Environment Agency: Remediated contaminated site O2: Kiener landfill. Online document in: Altlastenatlas , October 2009, section remedial measures - detailed description of the methodology based on the Spitzau landfill (Vienna).
  2. ↑ a b c d Volkmar Gossow: Baubetriebspraxis: Guidelines for the construction. Springer-Verlag, 2013, ISBN 978-3-642-72183-0 , civil engineering and special construction , 8.3.5.2. Schmalwand , p. 235 f ( limited preview in Google book search).
  3. ↑ Hans H. Weber (Ed.): Contaminated sites: Recognize, evaluate, renovate. Springer-Verlag, 2013, ISBN 978-3-642-97245-4 , Sanierungsverfahren , p. 170 f ( limited preview in the Google book search).