Soil extraction/grouting device

A ground coupled member lifting system, comprising:

• a casing installable into the ground proximate to the ground coupled member;
• a grouting system including:
• a grout conduit;
• and
• a bag coupled to an end of the grout conduit;
• and
• a cavity forming system including at least one cutting nozzle in fluid communication with a fluid conduit, the cavity forming system being movably extended at least partially within the casing;
• wherein the ground coupled member lifting system is used to carry out the following steps:
• driving the casing into a soil proximate to the ground coupled member;
• deploying a portion of the cavity forming system from the casing;
• pressurizing the fluid conduit to thereby send fluid through the cutting nozzle to soften the soil;
• directing the cutting nozzle in a direction to form a cavity in the soil at least partially beneath the ground coupled member;
• conducting the softened soil up through the casing to form the cavity, the cavity in the soil having a shape reflective of the movement of the cutting nozzle in the directing step;
• removing the cavity forming system from the casing;
• inserting the grouting system into the casing;
• and
• flowing grout into the bag positioned in the cavity.