Jet grouting is a method for mixing soil with injected cement grout in-situ to construct a cement stabilized soil. With proper quality control, the stabilized soil shows developed strength and reduced permeability. These altered properties allow the stabilized soil to worked as an engineered product for foundation support and groundwater control.
It is best practice to implement a pre-construction test program to calibrate, adjust and verify jet grout parameters and the design.
Fluid jet grouting – Single
The single fluid system is the easiest. This simplicity is due to particular reliance on the high velocity of Jetstream to cut, eliminate and mix the in-situ soil.
Fluid jet grouting – Double
The double fluid system is the contemporaneous injection of high-velocity grout stream within a cone of compressed air. The double fluid system is proficient of creating a larger column than the single fluid system.
Fluid jet grouting – Triple
The triple fluid system is the most intricate jet grouting system due to the contemporaneous injection of three different fluids, air, water, and grout. The triple fluid system can produce the largest diameter of column among the three types.