Diaphragm Walls
| Diaphragm walls are walls produced in soil with so-called cast-in-place concrete, which can reach high depths. The walls are built with a low noise and vibration method; its thickness depends on the structural usage and the equipment used. |
 Hinze Dam, Gold Coast Queensland |
Diaphragm walls have small deformations, and are therefore mainly used in inner-city foundations as retaining wall. Due to their relatively high water tightness they are also suitable as external wall for the future structure. In special cases, individual diaphragm wall elements are applied for foundations. Cut-off walls seal dams and retain landfill sites, tank storages or other industrial plants that may jeopardize the ground water. |
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Cast-in-place concrete diaphragm wall Having reached the desired wall depth, the stabilizing slurry is replaced by reinforced concrete, thus both structural and watertight walls can be made. Single Phase Cut-off Walls Single phase cut-off walls are diaphragm walls with a self-hardening suspension being produced in a trench excavated in the ground. Here the self-hardening suspension is at the same time used as stabilizing slurry. It is also possible to install additionally sealing elements like membranes or sheet pile walls. |