Patent ID: 8303215

Claim:
A method for installation of a wick drain in the ground, comprising: forming a passageway through the ground having an entry opening and an exit opening; positioning a wick drain inside a pipe casing, wherein the wick drain comprises a perforated drain pipe, an inner sheet of fabric disposed on the perforated drain pipe in a manner effective to cover the perforations therein, an outer sheet of fabric, and a layer of filter aggregate disposed between at least portions of the inner and outer fabric sheets to allow water to pass through the sheets and filter aggregate in order to enter the perforated drain pipe through the perforations therein; drawing the pipe casing having the wick drain therein into the passageway until the pipe casing is positioned inside the passageway; securing the wick drain against lengthwise movement inside the passageway after the pipe casing is drawn into the passageway; and then removing the pipe casing from the passageway by sliding it off of the wick drain, leaving the wick drain in the passageway in a position to allow liquids to be drawn into the wick drain and drain out of the passageway.