Deep-Soil-Mixing für eine Dammabdichtung in Österreich

Deep Soil Mixing for a dam sealing in Austria.

The upstream part of a dam at the Traun river power plant in Austria has been found to be permeable at the existing bitumen sealing, the dam base and the inner sealing wall. A new sealing wall including a new sealing wall head has been executed by means of the deep soil mixing technique. Areas containing granite blocks were executed with the Soilcrete® jet-grouting technique. To ensure the quality and the stability of the grout used for the sealing wall, permeability tests were executed in the finished wall in addition to compressive strength tests. Due to the application of a multi rod mixing tool, the execution time of this job could be reduced to a few weeks.