The adjacent panel will be excavated immediately after the first panel has been cast, starting from the inside bite.

To build a continuous diaphragm wall the primary precast panels are firstly inserted into the ground and spaced at a distance slightly smaller than the panel width. The secondary panels are built next to the primary ones.

It is not suitable for high water table conditions.

Diaphragm wall is a temporary reinforced concrete structure constructed panel by panel.

In the construction process of a diaphragm wall, bentonite is used to stabilise the ground before concrete is poured.