Diaphragm walls are continuous reinforced concrete walls constructed in the ground to support major construction activities like the construction of dams tunnel approaches deep basements and enclosures. They act as a retaining wall, support for the underground structure, as a foundation, or facilitate cut-off provision to support deep excavation.
A diaphragm wall forms a rectangular section constructed in situ under the soil. Hence this is an underground concrete wall. These walls are constructed panel by panel interlocked to ensure structural stability and water tightness.
diaphragm walls can have a thickness ranging from 60cm to 150cm with a width of 2.0 to 3.5m. As well as can also be constructed up to a depth of 60m.

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