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Dam renovation Kam

Assignment:

The 60 year old dam was to be renovated by reducing the porosity and by closing the cavities created over time by animals. Three methods were verified – vibro flotation, vibro stuff flotation columns and Impulse Compaction.

Solution:

Due to its technical and economic advantages it was decided to use Imulse Compaction. A row of compaction columns in close proximity to each other were created through a specific sequence of compactions. This without displacing the dam crest.

Results:

By means of the Impulse Compaction the complete gravel dam could be renovated and had its porosity and permeability reduced all the way down to the in-situ layer of gravel. Through the volume reduction the dam experienced at the same time an increase in its load carrying floodplain capacity and stability, further leading to a reduction of the danger of erosion.

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