Compensation Grouting | Piling Contractors | CFA Piling | Keller UK

Compensation Grouting

Compensation Grouting is a process used to control or reverse the settlement of structures.  It consists of the injection of material into the soil between the foundation to be controlled and the process causing the settlement.  The material injected is forced into fractures thereby causing an expansion to take place counteracting the settlement that occurs or producing a controlled heave of the foundation.Because the process requires that the soil is fractured and not permeated, Compensation Grouting may be used in most soil types ranging from gravels to clays or weak soils.

The control of settlement is carried out from outside the building and hence there is no disruption to the occupants.  The process can be repeated allow continuing settlement to be controlled.  Control can be very selective inducing very small level changes of varying amounts over the space of several metres, As the intention is to open fractures, generally cement-based grouts are used which are environmentally acceptable and durable.

Method

The Compensation Grouting process involves:

  • Installing grout injection tubes to a pre-determined pattern.
  • Monitoring movements by either precise levelling or the use of special settlement systems.
  • Injection of grout through sleeves with careful process control to induce compensating movements.

The intention of this system is to protect  buildings and other structures from damaging movements caused by sub-surface processes.

All stages monitored from installation of tubes to actual injection.  Grout mix, injection pressure, volume and pump rate are carefully designed and computer monitored.  Computer monitoring of movements can also be undertaken. 

Compensation Grouting Soilfrac

Compensation Grouting is a process used to control or reverse the settlement of structures. It consists of the injection of material into the soil between the foundation to be controlled and the process causing the settlement such as tunnelling or excavation. Compensation Grouting may be used in most soil types ranging from gravels to clays or weak soils.

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Our solutions are used across the construction industry from residential development, infrastructure and civil engineering to the energy and resource sectors.

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Relevant Offices
Coventry

Contacts for Assistance:
Anthony Lucas (07908 502122)
 

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