Subsidence, the gradual downward movement of a building or structure, can result in damage to buildings. Keller can apply re-levelling techniques to bring buildings back to their correct levels, strengthen any weak ground under and around the foundations and avoid any recurring sinking…
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.
Major civil engineering schemes often involve working below the water table. Controlling or preventing water seepage is vital to allow construction to proceed. Keller has a range of techniques to deploy to provide effective cut-offs and to seal joints and fissures in the ground or below ground…
Weak, compressible soils may require structural elements, specifically heavy foundations, that transfer loads through to underlying competent soils or rock. Whether an open site or inside an existing structure, Keller can provide the optimal heavy foundation solution for your project.…
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.
Whether natural or man-made soils sometimes present voids that may create sinkholes. Depending on the situation, and the quality of the soils, various techniques can be adapted to provide a permanent solution.
Tunnelling projects require a variety of solutions to make them safe to construct whilst minimising the impact on the surrounding infrastructure. As well as providing mitigating solutions to prevent instability, water ingress and protection measuresKeller can also measure the impact of the works…
During construction it is often necessary to form a stable excavation and to ensure that any associated movement will not damage neighbouring structures or utilities. Keller offers flexible solutions to solve even highly complex excavation support problems both in a temporary or in a…
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.…
When wet soils swell and can’t expand downwards or sideways, the soil rises up and exposes the upper surface, effectively the opposite of subsidence. While displacement may be relatively small, ground heave can still lead to serious structural damage. Keller can provide the best solution to…
If a construction project needs to monitor structural or ground movement or environmental properties like temperature, noise or vibration, Keller can design and install an instrumentation scheme, provide the software that gathers the information and present it in an easy to use format.
At Keller, we offer cost-effective and environmentally-beneficial soil remediation solutions to reduce contaminants to levels which are suitable for use without environmental risks or danger to health.
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.
Some ground improvement techniques, like piling and grouting, create spoil which, as it has to be removed from site, adds to cost. Keller offers innovative solutions to help its clients reduce and/or reuse spoil.
At Keller, we can offer a number of lower carbon products to help clients reduce the carbon footprint of their projects. We also offer measurement and offsetting.
