In order to achieve perfect ground improvement and leveling, many types of grouting methods are used. One such grouting method is known as the Compensation or Fracture Grouting. The process is about injecting and hydrofacturing with grout slurry of the soil.
In addition, the foundation of the grout slurry is pulled into the factures, which causes the extension countering the settlement and creates a controlled heave of the foundation. The repletion of the process creates a sensitive zone under the ground surface level.
CARE IMPROVEMENT
Types of Fracture Grouting soils: As this ground improvement process needs only soil to be fractured, the grouting method is only used for delicate types of the soil. These are the soils ranging from weak to the clay type. This method of grouting is especially used in the conditions that have soft soil.
Fracture Grouting Soil types: Because the process requires only the soil to be fractured, Fracture Grouting may be used at low permeability soil types ranging from weak rocks to clays. The method of fracture grouting is applicable on the following processes:
For the reduction or reciprocal reaction of differential settlement
For the reduction or reciprocal of total settlement
For prevention of settlement on the base of the building
The process of grouting involves the following steps:
The installation of grout injection tubes is the initial action of the process.
To control the movements by monitoring the process by the use of special settlement systems.
Increase the injections of grout into the base with careful control to maximize the grouting.
Some of the merits of Fracture Grouting system:
The controlling activity in the process can be carried out from the exterior of the building, so there is no inconvenience caused to the occupants.
This process may be repeated for maximum satisfying outcome. However, the repetition is carried out only if required.
The controlling patterns can vary depending on the soil condition of the concerned location for ground improvement.
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