Keller designs seal of all types of flood shafts, including structures already in operation and newly designed.

Floodbank construction

Common uses

Flood shaft seals
Repair of shaft seals for dams
Floodplains shaft seals
Seals for contaminated sites


Depending on customer requirements and ground conditions, Keller offers a wide spectrum of technologies to make shaft seals. These include vibrating methods that make a trench and construct a diaphragm wall made of DSM columns or Jet grouting, or even diaphragm walls.


A wide choice of techniques ensures the most efficient and fastest implementation
Design solutions tailored to specific conditions and requirements

Quality assurance

Keller has installed many kilometres of shaft seals ensuring efficient execution of a high-quality product.