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Barrette
Construction sequence
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Fields of application
• Complimentary to / in combination with diaphragm wall construction
• Due to their massive size, barrettes facilitate “top down” construction (achieved by extending the barrette to ground surface level or, if the barrette sections are considered too large in the context of parking arrangements, plunge columns of smaller section can be placed into the barrettes).
• Concrete backfilling can be terminated at any depth (the execution of non-concreted lengths is possible).
• Very high bearing capacity: at great installation depths, barrettes resist large concentrated vertical loads; they carry off significant horizontal stress and bending moments better than circular piles of the same section.
• The bottom of the excavation can penetrate resistant or rocky soil layers to accommodate high loadings
Environmental impact
• Vibration-free execution
• Removal of soil and disposal of bentonite
• Low noise pollution
• Removal of debris, demolition of old foundations and backfill with stabilized sand
• A wide working platform for the bentonite production process and a designated storage space of a minimum of 300 m² are necessary.
• A stable, dry and flat work platform is required.
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