Method for installing chemical polymer deep soil stabilization columns and sand columns

A method for installing a sand stabilization column in a sand-based soil, wherein the method utilizes a vibrating device and a chemical polymer, the method comprising:

• measuring a moisture content of the sand-based soil at a selected soil location;
• mixing a liquid vinyl acetate chemical polymer with sand to form a polymer-sand mixture, wherein if the measured moisture content of the sand-based soil at the selected soil location is above an optimum moisture content for the soil, the liquid vinyl acetate chemical polymer is mixed in undiluted form, and wherein if the measured moisture content of the sand-based soil at the selected soil location is below the optimum moisture content, the liquid vinyl acetate is diluted with water prior to mixing;
• penetrating, with the vibrating device, a surface of the sand-based soil at the selected soil location via induced vibration until the vibrating device reaches a predetermined depth in the sand-based soil, thereby creating a void around the vibrating device in the sand-based soil;
• injecting the polymer-sand mixture into the void and lifting the vibrating device a predetermined height above the injected polymer-sand mixture;
• lowering a distal end of the vibrating device to contact the polymer-sand mixture to densify the mixture;
• and
• repeating the injecting and lowering steps until the injected polymer-sand mixture reaches a surface of the void, whereby the vibrating device is removed from the void and the sand stabilization column is created in the void,
• wherein the liquid vinyl acetate chemical polymer is approximately 2% to 20% by weight of the sand stabilization column, and wherein the sand stabilization column is installed at a minimum depth of approximately 5 meters and a maximum depth of approximately 25 meters in the sand-based soil.