The following procedures are followed by Granite Foundation Repair during the installation of concrete pilings to assure that the customer receives the best possible foundation repair in Plano, Dallas or any of the surrounding areas by driving the piling system as deep as possible.
Clay soil limits the installation depth of pressed concrete pilings. Pressed concrete pilings are carefully driven by Granite Foundation Repair to refusal. Refusal is defined as that depth at which the piling system encounters sufficient resistance to prevent the attainment of further depth. Resistance is caused both by the sides of the piling and the end. In Dallas, Coppell, Garland and surrounding DFW Metro areas, the refusal may be caused either by compressed clay, or rock/sandstone and typically occurs at depths of ten to twenty five feet. It is possible to attain refusal at depths as shallow as five feet, but this is not a recommended practice except unless refusal is caused by stone.