Bauvorhaben: Sanierung und Erneuerung Hauptsammler Ost

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The east main sewer interceptor will be rehabilitated starting at the combined stormwater overflow basin RÜ27 over a distance of 1,067 m using the trenchless method with GRP pipes. The manholes in this area will be renewed. The old manholes for the Salzbach and the main sewer interceptor will be backfilled up to the inlet to the Salzbach. Some manholes will be dismantled in order to make space for new manholes. Instead of the sliding track crossing, which will be backfilled at the end of the measure, a new track crossing is to be constructed at a right angle to the tracks with a length of approximately 127 m using DN 1600 microtunnelling. From the new crossing at manhole 44927, the alignment will be guided via a curved microtunnelling section of 352 m parallel to the tracks to manhole 42225, where it will be connected to the existing DN 1500. Along the newly planned alignment, a chainage reference system will be laid starting at manhole 42225. All station statements refer to this planning chainage. The measure includes: - a total of 13 new manholes made of high-performance concrete - 2 sewer pipe jacking drives STB DN 1600, 127 m and 352 m microtunnelling with slurry feed and…

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