Construction—EMEA—Austria—Slope Stabilizations
Immediate Measure Ehrenhausen:
DYWI ® Drill System permits fast and flexible Slope Stabilization
In Ehrenhausen in southeastern Austria, south of Graz, an embankment was recently
destabilized by heavy rainfalls. A landslide occurred near the train station along the
railway tracks of the Suedbahn, affecting an approximately 200m long section of the
embankment.
Parts of the failed embankment buried the
tracks so that approximately 5,900m³ of the
slope had to be removed. Afterwards, the
unstable slope was stabilized by installing soil
nails up to a depth of 12m and by installing
high strength steel mesh to contain the slope
material.
The Suedbahn railway track that had been
closed due to the landslide had to be reopened
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for railway traffic as soon as possible, so the
slope had to be stabilized within a very tight
schedule.
In total, approximately 6,850m² of embankment
had to be stabilized, and 517m long rockfall
protection fences had to be built. In the
soaked unstable slope, stabilization using
DYWI ® Drill Soil Nails could only be carried
out manually and using a walking crane.
The DYWI ® Drill Soil Nails ensured
an efficient use both for mechanized
installation using the walking crane
and for manual installation.
Thanks to the flexible coupler system
and the comprehensive range of drill bits,
the soil nails could be directly adapted to
the prevailing geological conditions.