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Liquefaction is a common problem in earthquake-prone areas where soils lose strength due to the ground motion and behave like a viscous liquid, damaging overlying structures.

Weak, compressible soils may require structural elements, specifically heavy foundations, that transfer loads through to underlying competent soils or rock.

Underpinning provides additional support to existing foundations that are unable to safely support existing or future loads. Keller can provide the optimal repair or solution to remediate the structure.

It is often desirable to prevent the migration of contamination in the ground, or to prevent seepage from a dam or levee. Keller has a wide range of techniques that can be adapted to form an appropriate sealing or cut-off barrier.

Unstable ground can cause instability both in the temporary and permanent case. We have a range of solutions that can be deployed to strengthen the soils.

Keller offers a full range of services for the marine construction market. This includes the design and construction of new ports, jetties and quays as well as the extension and restoration of existing structures. We also have solutions for tidal barriers and coastal protection schemes.

Increasing land shortage is driving a need to use more brownfield and marginal land often requiring groundwater and soil remediation to reduce contaminants. Keller is the ideal partner for remediation projects, offering the optimal solution to make contaminated land suitable for re-use.

Slope stabilisation is often required to retain soil in a natural, unstable slope or in man-made excavations. Keller draws on its extensive experience with the full range of techniques to provide optimal slope stabilisation solutions for various projects.

Soils often need treating to support the weight of a building or to withstand the loads imposed by a piece of infrastructure. This can mean improving the ground or putting in foundations to transfer the loads to deeper more competent layers.