Diaphragm Walls
Creates temporary or permanent deep foundation and earth retention walls
Diaphragm walls are used to create temporary or permanent deep foundations and earth retention walls for deep basements, shafts, parking garages, marine structures, dams and permanent cutoff walls.
Also known as slurry walls, diaphragm walls are formed when deep trenches are excavated into the soil, where reinforced concrete is then placed. Mechanical or hydraulic clamshell grabs or hydrofraise mills are used to excavate the panels, and then the trenches are stabilized by the use of a supporting slurry.
Diaphragm walls can be used for earth retention schemes for highway and tunnel projects, as permanent walls for deep shafts for tunnel access and as permanent cut-off walls through the core of earth dams.
Nicholson’s advantage
Nicholson’s advantage
- Developed the first Hydrofraise through our parent company, Soletanche Bachy.
- Experience in a variety of applications (CSO, SOE, cut-walls)
- Extensive design knowledge in all types of soil conditions.
- Access to equipment and experts from our global network.
Did you know?
The Portland CSO diaphragm wall contains no reinforcing steel, but is held together by compression hoop stresses.
