In accordance with DIN 4126 is “A place concrete diaphragm wall a wall made of concrete or reinforced concrete, which is created in liquid-based slots in the bottom after the Kontraktorverfahren.” The diaphragm wall can a static and / or shielding function. In static function, it absorbs such as pit wall ground and water pressure forces and carries them through the anchorage or the ground resistance on the foot supports in the ground (fig. 1.1). Vertical forces (fig. 1.1) be transferred through peak pressure and mantle friction in the ground.Single slot wall elements are inserted in place of bored piles also as highly loaded elements.

A shielding function has isolated a diaphragm wall, preventing (fig. 1.2) as the flows of groundwater under a dam or a building against a vibration. Not concrete slit walls that are supported with easily compacted bentonite (small addition of cement), can be used for the recording of subsoil deformation (deformation buffer, fig. 1.2).

Fig. 1.1 static function of diaphragm walls

Fig. 1.2 shielding function of diaphragm wall

a) surface sealing

b) Vibration isolation

c) Inclusion of subsoil deformation