Diaphragm Wall

Diaphragm walls (Milano walls, Slurry Walls) are linear structures, which are used to shore deep excavations. These structures are most often used as constructional walls. At first this structure acts as a shoring wall during the construction, then it becomes a part of the basement walls. Diaphragm walls are made by excavating a trench using appropriate machinery and filling the trench with a suitable material (usually concrete).

Diaphragm retaining walls are often used as sealing structures – then the filling material used is self-hardening suspension. This suspension is quite strong and primarily fills a waterproof function. Its waterproofness can in certain cases be improved using plastic foil.

  • According to their purpose, diaphragm walls are divided into:

    • Constructional
    • Sealing
    • Shoring

    According to the manufacturing technology, diaphragm walls are divided into:

    • Monolithic
    • Prefabricated

    The GEO5 Sheeting Check program is used to make advanced designs of anchored or strutted diaphragm retaining walls (also sheet pile, soldier pile or pile walls are supported). It allows the user to model the real structure behavior using stages of construction, to calculate the deformation and pressures acting upon the structure, to verify the internal anchor stability or to verify steel, RC or timber cross-sections and the bearing capacity of the anchors.

The GEO5 Sheeting Design program is used to perform a quick design of cantilevered diaphragm walls or a basic design of anchored diaphragm walls (tieback). The program calculates the required length of the structure in soil, the internal forces on the structure and verifies cross-sections (RC, steel, timber).

Programs provide different types of soil anchors. Pre-stressed bar anchors (VSL, Dywidag), strand anchors (VSL, Dywidag), helical anchors (Helical Anchors Ltd, Chance, MacLean), anchor bars (VSL, Minova), deadman anchors. Parameters of anchors are included in database, which is a part of programs.

Further sources:
Types of excavation shoring structures solved by GEO5:

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GEO5 Geotekniske programvarer


Anti-Slide Pile


Cantilever Wall

Earth Pressure


FEM - Consolidation

FEM - Tunnel

FEM - Water Flow


Gravity Wall

Ground Loss

Masonry Wall


MSE Wall

Nailed Slope


Pile CPT

Pile Group

Prefab Wall

Redi-Rock Wall

Rock Stability



Sheeting Check

Sheeting Design


Slope Stability

Spread Footing

Spreed Fotting CPT


Stratigraphy -
Cross Sections

Strtigraphy - Logs