1. Construction of Diaphragm Wall

    Diaphragm Wall is generally reinforced concrete wall constructed in the ground using Under slurry technique which was developed in Europe.
    The technique involves excavating a narrow trench that is kept full of an engineered fluid of slurry.
    Walls of thickness between 300 and 1200 mm can be formed in this way up to a depths of 45 meters.

    Diaphragm Wall-Application

    Arrow Commonly used in congested areas.
    Arrow Can be Installed in close proximity to existing structure.
    Arrow Practically suited for deep basements.
    Arrow Used in conjunction with “Top Down” construction
  2. About Diaphragm Wall

    • Very unstable soil profiles below the water table.
    • Limited construction time Where deeper than normal cantilever support may be required.
    • Can be Installed to considerable depth.
    • Formation of walls with substantial thickness.
    • Flexible system in plan layout
    • Easily incorporated into Permanent works.
    • Designable to carry vertical loads.
    • Construction time of Basement can be lowered considerably.
    • Economic and Positive solution for large deep basement in saturated and unstable soil profiles.
    • Can be used for seepage control in Dams.
    • Noise levels limited to engine noise only.
    • No vibration during installation.

    Construction Procedure of Diaphragm wall

    Stage-1: Fixing of Alignment
    Stage-2: Guide wall Construction
    Stage-3: Trenching
    Stage-4: Trench Cleaning
    Stage-5: Stop ends fixing
    Stage-6: Reinforcement Cage lowering
    Stage-7: Placing of Concrete
    Stage-8: Withdrawal of Stop ends

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diaphragm wall