Intrusion Grouting

Many times the structure that needs to be stabilized and or lifted is not capable of the point stresses that piering involves.  Examples might be un-reinforced floor slabs or swimming pools.

By driving an injection pipe deep below the surface and then pumping various types of grout, the soil itself can be stabilized and even be made stiffer and denser.  This also can be beneficial to fill voids in very rocky soils that traditional piering may not be suitable for.  This is also the preferred method of stopping underground water movement.

In order for this type of repair to be effective deep soil testing must be done by a competent soils testing engineer.  An effective grouting plan can then be designed that will take into effect the various layers of soil and their densities to avoid injecting on top of loose soil and exacerbating the problem by adding weight on top of the incompetent soil.