Patent ID: 7040842

Claim:
Method for making a foundation member in the ground, comprising the steps of: introducing into a soil area a soil working implement having a drilling string with a soil auger thereon for loosening the soil material in the soil area, using a mixing device having mixing paddles located on the drilling string, mixing the loosened soil material in the soil area with a liquid to form a settable suspension, removing from a first section of the soil area into which the soil working implement is introduced, at least a part of the suspension comprising the mixture of the loosened soil material with the liquid, and for generating a suction effect in the first section of the soil area, returning at least part of the removed suspension including a part of the loosened soil material to a second section of the soil area, and following the removing and returning steps, hardening the suspension in the soil area to form the foundation member wherein the removing and returning steps bring about a suspension circulation in the soil area leading to a particularly good intermixing of the suspension.