Ground Improvement

Ground improvement increase the load-bearing capacity and reduces settlements. The risk of soil liquefaction during earthquakes can also be reduced. The resulting foundation conditions are equivalent to those of natural soils with an adequate load-bearing capacity. Ground improvement involves the use of self-exploratory processes. An intrinsic adaptation of achievable depths and diameters occurs as a result changing geological parameters.


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Vibroflotation (VF)

Applicable in granular to weakly cohesive soils, such as sand and gravel, as well as in slag deposits. Suitable for high loads on the improved subsoil including dynamic stress. Very low settlements. Particularly economical in saturated soils below the groundwater level.

Vibro Displacement (VD) / VIPAC

Vibro Displacement (VD)

Applicable in mixed-grained soils, such as sandy silts, to cohesive soils with an undrained shear strength of 20 to 80 kN/m2 by the addition of coarse granular backfill. Suitable for light to medium building loads.




As an alternative form of vibro displacement technique, the VIPAC process can be used to construct sand and gravel columns simply and economically. The displacement work is effected by vertical vibrations that are generated by a vibro hammer. The process involves repeated raising and lowering of the vibrator tube. The resulting column diameter is generally slightly larger than the diameter of the tube. A telescopic loader can fill the VIPAC system with backfill material even as the tube is vibrated into the ground.

Vibro Concrete Columns (VCC)

Can be used in primarily soft cohesive soils as well as organic deposits overlying load-bearing soil formations. Suitable for both light and medium building loads. Very low settlements.

BAUER Dynamic Compaction

Dynamic compaction is a soil densification method. The soil is compacted by repeated dropping of a heavy weight (pounder) from a predetermined height onto the ground surface. The imparted high kinetic energy, which is transmitted to deeper soil layers, forces the soil particles into a denser state of compaction. The degree of compaction depends on the weight of the pounder, the height from which the pounder is dropped, and the compaction grid is dropped.


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