Spezialtiefbau

Diaphragm Walls, Cut-Off Walls and Slurry Walls

Diaphragm walls are concrete or reinforced concrete walls constructed in slurry-supported, open trenches below existing ground. Concrete is placed using the Tremie installation method or by installing pre-cast concrete panels (known as a pre-cast diaphragm wall). Diaphragm walls can be constructed to depths of 100 meters and to widths of 0.45 to 1.50 meters.