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Slurry wall installation as deep foundation process
Slurry walls are deep wall structures made of concrete, reinforced concrete or binding agents in the building ground. They have a static or sealing function. For their production trenches are excavated in panels. A support fluid, usually bentonite suspension, prevents the soil around the trenches from caving in. In the single phase method a self-hardening suspension remains in the trench. In the two-phase method the support fluid is pumped out of the trench and replaced by e.g. concrete after the final depth has been reached. In the combined method, precast concrete elements, steel elements or sealing panels are inserted in the not yet hardened suspension.